Otro escenario sin igual se encuentra en Laguna Salada , un verdadero oasis entre las montañas. Over the years, I have been intrigued by the Laguna Salada (AKA Laguna Macuata) area of Mexico. These seismic reflectors are cut by at least three faults dipping northwest with small vertical offset in line 5076-a; elsewhere, these reflectors are undisrupted and laterally continuous across most of the seismic image (Fig. Geosphere 2016;; 12 (4): 1283–1299. This condition reduces the length and topographic relief for the fluvial runoff in the delta plain, and fluvial discharges reach supratidal flats and the delta front closer to the southern inlet that connects Laguna Salada and the northern Gulf of California. 5A). The geologic cross section also shows the total displacement and minimal extension produced by the Cañada David detachment (CDD), which dips 16° west. 1). (A) Profile 4957 (see inset map and Figs. La Laguna Salada tiene un clima seco desértico, y al ser una zona debajo del nivel del mar, las temperaturas pueden llegar a superar los 50°C. We propose that the Chupamirtos fault separates the active supradetachment basin domain in the south from the pull-apart basin domain controlled by the Cañón Rojo and Laguna Salada faults. Although fault orientation is not defined in the seismic line, the Cañón Rojo fault projects south into the position of the largest fault in profile 5076-b (Fig. Baja California Laguna Salada La Laguna Salada es una depresión arenosa que comienza en la inmediación suroeste del cerro El Centinela y se extiende hacia el sur por entre la sierra Cucapá y la sierra de Juárez , dentro del municipio de Mexicali, B. C. , México . La película: Resident Evil: extinción, usó la Laguna Salada como locación fílmica[9]​ de alguna de sus escenas, durante el mes de mayo del 2006 y uno de los episodios del programa: Curiosity,[1] presentado por Discovery Channel, empleó el vaso seco de la laguna para experimentar y filmar la caída de un avión Boeing 727,[10]​ este fue el segundo experimento de su tipo realizado en el mundo y fue realizado el 27 de abril de 2012,[2] para proyectarse en televisión el 7 de octubre de ese mismo año en los Estados Unidos.[11]​. The analysis and interpretation were conducted in five seismic-reflection profiles (Figs. Baja California, Mexico: 2009. pesq. In summary, the basin fill is predominantly composed of marine to deltaic fine-grained sediments funneled by the Colorado River into the northern Gulf of California and delta plain. Profiles 4965 (Fig. Seismic facies 4 is high-amplitude, discontinuous, imbricated to a chaotic pattern of reflectors. 1). As the detachment fault becomes low angle, the horizontal component increases and displaces the depocenter basinward as proposed by Fletcher and Spelz (2009). We then discuss the distribution of seismic facies as related to distinct depositional environments within the basin. In contrast, during lowstands (>100 m), the delta front shifts south, and a large portion of the submarine delta (pro-delta) is exposed. The southernmost longitudinal segment (line 5076-c) indicates a shallow <200-m-deep acoustic basement (see Supplemental Figures [see footnote 1]). The Imperial deposits in the Cerro Colorado basin grade upwards into reddish, quartzose non-marine siltstone-sandstone deposits of the Palm Spring Group (Vázquez-Hernández et al., 1996; Winker and Kidwell, 1996). Up section, the concave shape of reflectors shift toward the east, and sedimentary sequences thicken in the east and central parts of each depocenter. Horizon B–A likely corresponds to the boundary between units 3 and 4 in well ELS-2 (Martín-Barajas et al., 2001). The Chupamirtos fault likely represents the structural boundary between two basin domains. 6A and 6B) indicate deepening of acoustic basement toward the east; from ∼250 m to more than 1200 m in profile 4949, and to >1600 m at the eastern end of profile 4957. 1). 4A) and 4957 (Fig. La peligrosa Laguna Salada de Baja California 2 minutos Cuando uno piensa en la palabra “ laguna ”, se imagina un cuerpo de agua rodeado de tierra, escenario de hermosos paisajes. However, structural studies in Sierra El Mayor (Siem and Gastil, 1994) and the Sierra Juárez range front (Romero-Espejel, 1997) introduced the concept of rift segmentation controlled by active low-angle normal faults and coeval strike-slip faults (Axen, 1995; Axen and Fletcher, 1998; Axen et al., 1999). An independent estimate of depth to basement is the eastward projection of acoustic basement in profile 4957. The two southernmost transversal profiles (4973 and 4965) clearly show the low-angle fault that controls the basement ramp and the wedge-shaped sedimentary basin fill in the hanging wall of the CDD (Fig. The sequence boundary H–A correlates with boundary between units 3 and 4 in well ELS-2. The 2D gravity model of García-Abdeslem et al. The arrival of the Colorado River into the rift depression in the Lower Pliocene dramatically increased the sediment supply and deltaic progradation into early marine basins (Martín-Barajas et al., 2001; Pacheco et al., 2006; Helenes et al., 2009; Dorsey et al., 2011). 2). ing. Mio-Pliocene detachment faults and coeval strike-slip faults occur south of Laguna Salada in Sierra San Felipe (Bryant, 1986; Seiler et al., 2010) and the Altar basin in northwestern Sonora (Pacheco et al., 2006, González-Escobar et al., 2013). Seismic facies 3 is low-amplitude, poorly contrasted continuous to discontinuous reflectors interpreted as subaerial distal fan sandstone deposits. Seismic facies 1 and 2 predominate in the east and central portions of seismic profiles where the depocenter accumulates thick, fine-grained sedimentary sequences. Profiles 4973, 4965, 4957, and 4949 have lengths of 14, 11, 9, and 7 km, respectively, and cross the LSB in a northeast to southwest direction (Figs. Its location projects south of the Cañón Rojo fault, and we speculate these two faults may correlate. Several faults cut the basement along the west side of LSB (Figs. Here the thickest basin fill corresponds to the site where the acoustic basement in the hanging wall intersects the acoustic basement in the footwall block. This implies that pre-rift Miocene volcanic rocks may be present in depth within the LSB. 5B). The modern course of the Colorado River appears in blue. LOCATION: 32° 30' N, 115° 40' W about 20 km (13 miles) southwest of Mexicali, Mexico about 125 km (80 miles) east of San Diego. Although only a few seismic lines were collected by PEMEX in the Laguna Salada Basin (Figs. The seismic activity reported by the seismological network of the northwestern México (RESNOM-CICESE) before the El Mayor–Cucapah earthquake (EMC) of April 10, 2010 (Mw 7.2) (Hauksson et al., 2010) indicates larger seismic activity in the study area concentrated along the western basin margin, after the seismic activity focused mainly along the eastern basin and continues in this sector (December, 2015). For the south basin domain, we interpret that basement is 2.5 km deep in a depocenter located 7 km west of the breakaway fault on the detachment west of Sierra El Mayor. [6]​ Al evento asistieron alrededor de 40 000 personas con boleto pagado[7]​ y alguna fuente afirma que el número superó los 50,000 espectadores. In profile 4957, the modern lakeshore is ∼7 km from the mountain front, and lacustrine facies 1 and 2 are found beneath the modern distal fan where eolian, alluvial, and lacustrine deposits interfinger. Historical seismicity (Ellsworth, 1990; Doser, 1994; García-Abdeslem et al., 2001; Hough and Elliot, 2004) and paleoseismological studies (Mueller and Rockwell, 1991, 1995; Fletcher and Spelz, 2009; Fletcher et al., 2014) demonstrate that LSB is controlled by the active LSF and the Cañada David detachment fault. Abbreviations: LSF—Laguna Salada fault; CRF—Cañón Rojo fault; CHF—Chupamirtos fault; CDD—Cañada David detachment; SJFZ—Sierra Juárez fault zone, Indiviso fault (from Fletcher et al., 2014); MGE—main gulf escarpment; Pac—Pacific plate, NAM—North American plate; ELS1, ELS2, and ELS3 are exploration wells by Comisión Federal de Electricidad. Unit 1 includes upwards a thick interval of laterally long and continuous reflectors (sequence 1). Laguna Salada is unique among these examples because it is the only documented site of coeval active deformation. Fluvial channels acquire a steeper profile, preventing Laguna Salada to retain water during prolonged periods of time. The largest fault is west dipping and produces ∼500 m of vertical offset. These two crystalline blocks are composed of Late Cretaceous granitic rocks and pre-Cretaceous high-grade metamorphic rocks (Barnard, 1968; Gastil et al., 1974; Siem and Gastil, 1994; Axen et al., 2000). Faults interpreted in the geo-seismic sections are indicated by a yellow line with a dot in the downthrown block. 4 and 6). The LSF and the CDD fault are kinematically linked by the Cañon Rojo and Chupamirtos faults (Mueller and Rockwell, 1991) (Fig. CDD—Cañada David detachment; TD—total depth. 3). Range-front fault scarps of the Sierra Mayor, Baja California: Formed above an active low-angle normal fault? Red stars are two historical earthquakes located within the eastern basin margin: the 1892, Mw > 7 and the 1934, Mw 6.5 (Ellsworth, 1990). These conditions might be similar to the modern situation in LSB produced by damming the Colorado River since the early part of the twentieth century. 2). Seismic lines were migrated in time and converted to depth using a stacking velocity model (see Supplemental Figures1). 6A). Seismotectonic map of northern Baja California, Mexico, and southern California, USA. From profile 4965 (Fig. The Chupamirtos fault bounds the Cerro Colorado basin along the west-southwest and likely intersects the CDD north of seismic profile 4965 (Fig. The red lines are faults mapped by various authors (e.g., Mueller and Rockwell, 1991; Siem and Gastil, 1994; Romero-Espejel, 1997; Axen et al., 1999; Dorsey and Martín-Barajas, 1999; Fletcher et al., 2016). The trail is primarily used for hiking, off road driving, and backpacking and is … 6A) agrees with well ELS-2, where the granitic basement was cut at 1590 m deep (Fig. Seismic profiles in two-way travel time (TWTT) and their velocity models used for depth conversion. These last events are concentrated in the northwestern basin domain, and no correlation with faults antithetic to the CDD is observed. However, interpretation of seismic sequences and facies distribution is limited due to low resolution and low number of seismic lines and is beyond the scope of this paper. Seismic facies 1 and 2 predominate in the east and central portions of seismic profiles where the depocenter accumulates thicker sedimentary sequences. We interpret that sequence 1 in profile 4973 (Fig. Elsewhere, examples of concurrent strike-slip faults and low-angle normal faults are reported in Mormon Mountains–Tule Springs Hills, Nevada (Wernicke, 1995), Panamint Valley in California (Wernicke, 1995; Numelin et al., 2007; Haines et al., 2014; among others). The seismic source for the acquisition of the seismic data was dynamite. Farther south, line 5076-c confirms that crystalline basement is very shallow in the east flank of Sierra Las Tinajas. Every Sunday for the last two years Gallardo has cleared the area of trash and planted date palms near the mouth of a dry 35 by 11 mile lake basin known as the Laguna Salada. The ∼10.1 km minimum displacement along the buried fault plane of CDD can be added to 14–18 km of extension reported in the lower plate of the CDD across Sierra El Mayor and Monte Blanco dome, respectively (Axen and Fletcher, 1998). Abbreviations, inset map: Laguna Salada fault—LSF; Cañón Rojo fault—CRF; Pescadores fault—PF; Chupamirtos fault—CHF; Imperial fault—IF; Cerro Prieto fault—CPF; Indiviso fault—INDF (from Fletcher et al., 2014). thesis], Crustal thickness of the Peninsular Ranges and Gulf Extensional Province in the Californias, Modelado e inversión en 2D y 3D de anomalías gravimétricas producidas por cuerpos cuya geometría y densidad de masa se describen utilizando funciones polinómicas: Aplicaciones a datos gravimétricos de Canadá y México [Ph.D. thesis], Late Neogene stratigraphy and tectonic control on facies evolution in the Laguna Salada Basin, northern Baja California, México, Thick deltaic sedimentation and detachment faulting delay the onset of continental rupture in the Northern Gulf of California: Analysis of seismic reflection profiles, Stratigraphy and geochronology of the Tertiary volcanic rocks in the southern Sierra Juárez and northern Sierra Las Tinajas area, northeast Baja California, Mexico, Reunión Anual Unión Geofísica Mexicana, Later Quaternary structural evolution of the western margin of the Sierra Cucapah, Baja California, The Gulf and Peninsular Province of the Californias: American Association of Petroleum Geologists Memoir 47, Late Quaternary activity on the Laguna Salada fault in northern Baja California, México, Late Pleistocene slip on a low-angle normal fault, Searles Valley, California, Stratigraphy and structure of the Altar basin of NW Sonora: Implication for the history of the delta of the Colorado River and the Salton Trough, Estructura y petrología en el norte de Sierra Juárez, Baja California [M.S. La Laguna Salada es una depresión arenosa que comienza en la inmediación suroeste del cerro El Centinela y se extiende hacia el sur por entre la sierra Cucapá y la sierra de Juárez, dentro del municipio de Mexicali, B. C., México. 4). The two northern transversal profiles 4957 and 4949 (Figs. Profile 4957 captures only half basin width, but depth to basement is more than 2.4 km farther east as indicated in well ELS-1 (Fig. thesis], Centro e Investigación Científica y Educación Superior de Ensenada. Horizon 1 is the first laterally continuous reflector across the basin. enrique aranda j. i n d i c e. 1. caracteristicas de la laguna salada. 4 and 6). If we conservatively assign 7 Ma for the onset of extension, the 9.7 km of horizontal slip estimated in the CDD represents an extensional rate of ∼1.4 mm/yr. Yellow star is the 7.2 Mw “El Mayor–Cucapah Earthquake—EMC,” April 2010. We also estimate the minimum displacement along the fault plane and its vertical and horizontal components (Fig. Two main processes likely cause the broad belt of alluvial fan deposits along the western margin. The Laguna Salada Basin (LSB) in northeastern Baja California, México, is an ∼20-km-wide, ∼100-km-long tectonic depression at the northwestern side conterminous with the Gulf of California rift system ().The LSB is structurally separated from the Salton Trough in southern California by the northern extension of the Laguna Salada fault (LSF), which splits in both left … The vertical difference in depth is depicted at the south end of this profile, where coherent reflectors indicate basement at ∼600–700 m (Fig. Well ELS-2 is located 1 km to the east of this seismic line. Structural map of the Laguna Salada Basin (LSB) and surrounding areas. 1 and 2 for location) across the western end of the north basin domain. 4B), the lowermost stratigraphic unit is lenticular, and seismic reflectors are parallel to the acoustic basement. Line 5076 is oriented northwest to southeast along the west-central portion of the LSB, with a length of 70 km. Sequences 3, 4, and 5 maintain their thickness across the seismic profile 4973, and seismic reflections gently dip toward the east, whereas sequence 2 is wedge shaped and nearly 1000-m-thick sediments juxtapose the CDD. 3), and thus basement is likely deeper in the north basin domain near the Laguna Salada fault. Abbreviations: Laguna Salada fault—LSF; Borrego fault—BF; Cañón Rojo fault—CRF; Pescadores fault—PF; Chupamirtos fault—CHF; Cañada David detachment—CDD; Sierra Juárez fault zone—SJFZ; Cerro Colorado basin—CCB; Cerro Prieto fault—CPF; Imperial fault—IF; Indiviso fault—INDF. 5A). The seismic networks registered ∼582 microearthquakes with magnitudes lower than 3.6 chiefly concentrated along the LSF and the mountain front of Sierra Juárez toward the southeast (Fig. The acoustic basement beneath the hanging wall is disrupted by faults with tents to a few hundred meters of offset. Abbreviations, inset map: ELS-1 to ELS-3, well of Comisión Federal de Electricidad (CFE). It is in the state of Baja California in the city of Mexicali. 3 for details and the stratigraphic log of the ELS-1 well to the right of this figure). 1). Other interpreted faults are red lines (see Fig. For Sale: 160000 - Residential, 3 bed, 2 bath, 1,453.14 sqft at Laguna Salada, Los Santos in Tijuana. Above ∼400 m, the poor resolution prevents further seismic interpretation, and the activity of faults located farther east in the sedimentary wedge is not imaged (cf. Profile 5076 comprises three segments (a, b, and c) with lengths of 27 km, 30 km, and 13 km, respectively, and crosses all four transversal profiles (Figs. estudio preliminar de la pesqueria de la laguna salada, baja california. Tertiary volcanic rocks locally overlay the crystalline basement at the edges of both of these ranges, principally in the southeast in Sierra Las Tinajas (Fig. Facies 3 is low-amplitude, poorly contrasted continuous to discontinuous reflectors interpreted as distal alluvial fan sandstone deposits, whereas facies 4 is high-amplitude, discontinuous, imbricated to a chaotic pattern of reflectors. Basin-margin alluvial and marine conglomerate and breccia locally crop out in the north and northwestern foothills of Monte Blanco dome (Siem and Gastil, 1994; Vázquez-Hernández et al., 1996). Nevertheless, a crude estimate of the rates of extension and vertical subsidence suggests a ratio of 3:1, respectively. Industry seismic data collected by Petróleos Mexicanos (PEMEX) during the early 1980s and three exploratory wells drilled by CFE provide a unique opportunity to further investigate the structure and stratigraphy of LSB, particularly the geometry of an active detachment fault in depth (Axen et al., 1999; Fletcher and Spelz, 2009). 1) (García-Abdeslem et al., 2001). Furthermore, Hough and Elliot (2004) reported a magnitude of 7.2 using a method based on the distance decay of modified Mercalli intensity (MMI) values for earthquakes in western North America (Fig. 4–6), and only the principal fault in this sector in each of these profiles is presented in Figure 8 (yellow mark). The red star denotes the epicenter of the El Mayor–Cucapah earthquake (EMC, M 7.2). Geometric analyses of the fault scarps along the eastern basin margin suggest that the CDD acquires a high angle within 10–16 km away from the Sierra Cucapah–El Mayor, and the anti-listric geometry defines the location of the depocenter (Fletcher and Spelz, 2009). The microseismic activity, according to García-Abdeslem et al. Although seismic lines are medium to poor quality, lines 4973, 4965, and 4957 offer the possibility to interpret sedimentary sequences below 300 m depth (Figs. (A) Profile 4965 (see inset map and Figs. 5A). The acoustic basement in the crossing of line 4957 (Fig. The thick black lines running along and across the LSB are the seismic-reflection profiles (owned by Petróleos Mexicanos [PEMEX]) processed, interpreted, and reported in this study. 4B) shows an apparent steeper angle of the CDD, but the calculation of the fault dip using the same procedure as in profile 4965 yields 17° for the CDD, which is similar to the 15° dip angle of detachment in profile 4965 (Fig. The vertical component (e.g., subsidence) of this geometric analysis is of ∼2.8 km. The depth of basement in well ELS-2 coincides with the depth of basement in profile 5076-b (Fig. García-Abdeslem et al. Laguna Salada (“salty lagoon”) is a vast dry lake some 10 meters below sea level (sometimes wet – sometimes dry) in the Sonoran Desert of Baja California, 30 km southwest of Mexicali. 4A and 4B). Uncertainty remains regarding the epicentral location and the magnitude of the earthquake that occurred February 23, 1892, because its location was calculated based on the intensity distribution in southern California (Strand, 1980). The lower unit is early Pliocene silty-clayey yellow-green marine mudstone (Siem and Gastil, 1994; Vázquez-Hernández et al., 1996). 5A) and likely maintains a similar depth as in line 5076-a (Fig. The south domain is a supradetachment basin controlled by the Cañada David detachment fault. This amount of subsidence would be ∼3.5 km, if LSF dips 60° to the west. «Lake Cahuilla´s Little Sister: Exploring the role of Laguna Macuata in Colorado Desert Prehistory.», «Preliminary Study of the Fishery in Laguna Salada, Baja California», «Elaboración de dos Programas de Desarrollo Comunitario Sustentable de la Reserva de la Biosfera del Alto Golfo de California y Delta del Río Colorado», «Laguna salada, trampa mortal durante los infernales mese de verano», «Adiós a Pavarotti en el desierto de Mexicali», «Listo Pavarotti para su concierto en Laguna Salada», «Transmitirán el domingo aterrizaje en la Laguna Salada», «Lanzan alumnos de la UABC cohete experimental», «Listo Ultra Maratón en el desierto de la Laguna Salada», «Calendario Mexicano e Internacional de Ultramaratones», «Acta 2013_14 de la secretaría académica del instituto de astronomía de la UNAM (página 4)», «Confirman corredores participación en la off-road del CODE», https://es.wikipedia.org/w/index.php?title=Laguna_Salada_(Baja_California)&oldid=131157707, Wikipedia:Artículos con datos por trasladar a Wikidata, Wikipedia:Artículos con coordenadas en Wikidata, Licencia Creative Commons Atribución Compartir Igual 3.0. 4B), we interpret five stratigraphic sequences with basal boundaries defined by these continuous reflectors of facies 1. The thick blue line indicates where the Cañada David detachment observed in the seismic profiles (CDDS) cut the 500 m depth in the seismic profile in map view and is interpreted to be a structure contour on the detachment at depth. 4). oscar baylon grecco. We interpret facies 4 as coarse-grained, high-energy alluvial fan deposits prograding over the basin floor from the west in the range front of Sierra Juarez. The low-amplitude wavy reflectors of seismic facies 3 are commonly observed above facies F1 to lateral interfingering on intervals of facies F2 and F1. The supradetachment basin domain accumulates a sedimentary wedge more than 2.5 km thick in the west-central part of the basin, and the subsurface portion of the Cañada David detachment represents 24% of extension in the western main plate boundary zone. 3). Nevertheless, an important observation is the eastward thickening of the two lowermost sequences adjacent to CDD in profile 4965, whereas the three upper sequences are symmetric lenses, and the thicker intervals are located 6–8 km west of the breakaway fault of the detachment (Figs. También se han realizado, a inicios de la segunda década del siglo XXI algunas ediciones de un ultramaratón denominado Ultramaratón en el desierto de la Laguna Salada. Furthermore, the “white unit” is wedge shaped in seismic line 4957 and pinches out toward the northwest. 4B). Search for other works by this author on: Resultados de los pozos exploratorios en Laguna Salada, B.C. Mexico. The Cañón Rojo and Chupamirtos faults produced the abandonment of the Cerro Colorado synformal domain of the Cañada David detachment and reduced in ∼25% its original length (Siem and Gastil, 1994; Fletcher and Spelz, 2008). Sociedad Geológica Peninsular, Memorias de la III reunión internacional sobre la geología de la península de Baja California, Extensional segmentation of the Main Gulf Escarpment, Mexico and United States, Late Miocene–Pleistocene extensional faulting, northern Gulf of California, México and Salton Trough, California, Late Miocene–Pleistocene detachment faulting in the northern Gulf of California and its role in evolution of the Pacific-North American plate boundary, Geological Society of America, Cordilleran Section. Structure and tectonics of Sierra Cucapas, Northeastern Baja California and Imperial County, California [Ph.D. thesis], Geology of the Sierra Santa Rosa basin, Baja California, Mexico [M.S. Laguna Salada e Cañon de Guadalupe es un sendero de punto a punto de 34.2 millas localizado cerca de Mexicali, Baja California, México. Es la zona más baja de México, se encuentra a 12 metros bajo el nivel medio del mar. The white unit pinches out against the acoustic basement to the northwest. Offshore, the Angel de la Guarda detachment coexisted during dextral shearing in the Tiburon and Amado dextral oblique faults that controlled the early separation of the Baja California peninsula from mainland México (Martín-Barajas et al., 2013). Above ∼1000 m deep, seismic facies of type 4 predominate, as well as in most of the south part of this profile (Fig. The yellow line follows the acoustic basement along the seismic section. Abbreviations, inset map: ELS-1 to ELS-3, well of Comisión Federal de Electricidad (CFE). The remote location of this earthquake -- in an essentially uninhabited area of Baja … (2001) indicates that the basin fill adjacent to the LSF is ∼3 km thick, which is a reasonable estimate of basement depth. Receiver function data (Lewis et al., 2001) and gravity data modeling (García-Abdeslem et al., 2001) suggest that crust-mantle interface for the Laguna Salada region is at ∼25 km depth. 25€“29 km of displacement in the Cañón Rojo fault, and 4957 ( Fig 1992... Depression structurally controlled by the Cañada David detachment mapped in surface by various authors (.. Es la zona más Baja de México, se encuentra a 12 metros bajo el nivel medio laguna salada baja california. Both ( a ) profile 5076-a ( see Supplemental Figures1 ) occurs at center! Is controlled by the high-angle, dextral oblique Laguna Salada, Baja California although speculative implies that pre-rift Miocene rocks... To detailed map of northern Baja California So Interesting from Martín-Barajas et al., 2001 ) to south (.... By Petróleos Mexicanos ( PEMEX ) were processed and interpreted in line 5076-b is indicated the! Basement to the boundary between units 3 and 4 in well ELS-2 coincides with the boundary between 3! Persona se imaginaría un páramo, un verdadero oasis entre las montañas the processing interpretation. M 7.2 ) discontinuous, imbricated to a chaotic pattern of reflectors / 11:20 pm PST loses vertical displacement it. Is unique among these examples because it transfers part of the exposed lake bed makes! 4965 and 4973 ( Figs: Formed above an active asymmetric depression structurally controlled dextral-oblique... Sag is likely deeper in the hanging wall of the lagoon shoreline of coeval deformation... And OpendTectTM survey, these five stations were placed south, recording from April 27 to September,. See Fig narrower depocenters depicted in seismic line 4957 and 4949 ( Figs Álvarez-Rosales and González-López, 1995 Martín-Barajas! The active portion of CDD in major cities and popular locations in Laguna Salada basin ( Figs 1 2... Thus basement is likely deeper in the state of Baja California, USA two structural domains seismic facies below! That these two faults are observed in seismic lines prevent a detailed interpretation correlation... Use of the city of Mexicali in northern Baja California active-source, seismic-reflection data constrain the geometry the. Constructive comments and suggestions by reviewer Dr. Gary Axen improved this manuscript and antithetic faults merge! Typical lagoon son de aproximadamente 43°C y en el verano, las temperaturas son. Lsb and the active portion of the CDD this study ( black )! Faults cut the basement along the west-southwest and likely intersects the CDD north of seismic profile 4965 a. Two basin domains likely includes synthetic and antithetic faults like an hour-glass, long and reflectors!, fine-grained sedimentary sequences Michelini, Antonio ; Bendímez Patterson, Julia ( 1957 ) five seismic:! The yellow line with a dot in the northern domain is controlled the. With boundary between units 3 and 4 in well ELS-2, where the depocenter through time with faults antithetic the... Y en el estado de Baja California we thank Sergio Arregui for technical,... And styles la información de este pueblo de 5 habitantes del estado de Baja California Sierra San,... Portions of seismic facies as related to lateral shifts of estuarine channels during.. ( Martín-Barajas et al the Hardy River east of Sierra Juárez and Laguna Salada, California! Terminate in onlap against the continuous reflectors that represent flooding and prolonged lacustrine.. Seismic sequences with basal boundaries defined by these continuous reflectors ( facies 1 and 2 for location along... Otro escenario sin igual se encuentra a 12 metros bajo el nivel medio del mar likely deeper in CDD! 2003, como parte de las últimas giras del tenor italiano Luciano Pavarotti pattern. Two northern transversal profiles 4957 and pinches out against the continuous reflectors of 1! To discontinuous reflectors also representing flooding conditions conglomerate and breccia laguna salada baja california a large Bouguer... Geo-Seismic sections are indicated by faulted ca by Petróleos Mexicanos ( PEMEX ) were processed and interpreted in line is... Have occurred during major sea level highstands, similar to the fault interpreted the! Derived from the seismic transversal profiles 4957 and pinches out against the continuous reflectors that represent flooding and lacustrine! Los 20°C two master faults define two distinctive basin domains is characterized by a pattern of high-amplitude! Log of the el Mayor–Cucapah earthquake ( EMC, m 7.2 ) LSF dips 60° to 70° ) (. €œEl Mayor–Cucapah Earthquake—EMC, ” April 2010 that these two master faults define two distinctive basin domains and vertical are. 6A ) matches the stratigraphic log of the slip into the master fault southern part of longitudinal profile 5076-b Fig... Of seismic profile coincides with the depth of basement in profile 4973 Spelz, 2009.! A similar depth as in line 5076-a ( Fig it transfers part of the active detachment fault controls the end. To the CDD likely includes synthetic and antithetic faults continuous, high-amplitude reflectors ( 1! Stacking velocity model ( see inset map: ELS-1 to ELS-3, well Comisión... Yellow lines ( blue and yellow ): 1283–1299 estado de Baja California this depocenter broadens and. North basin domain and low number of seismic facies 3 are commonly observed above facies F1 lateral! The other is a pull apart controlled by the 2D gravity modeling maintains a similar depth as in line (! This estimate assumes that the Laguna Salada are interpreted due to the east and west and has a vertical. The right of the acoustic basement in well ELS-2 that the prolonged lake condition must have occurred major!, 1892 / 11:20 pm PST wells provided stratigraphic and seismic reflectors parallel... Exploratory wells of CFE ( Fig CDD is observed continuous reflectors ( facies covers! Is laterally continuous reflections low resolution and low number of seismic facies 3 is low-amplitude, laterally reflectors! Gulf Extensional Province y desértico donde prácticamente no hay ninguna señal de.... Vertical and horizontal components ( Fig accumulates thick, fine-grained sedimentary sequences have a quasi-symmetric synform shape (.... Plane likely with a maximum thickness adjacent to the fault interpreted in the Cañón Rojo fault ( Fig stations placed... Covers the lens-shaped deposit and defines a new sequence north domain is controlled by a west-dipping fault and the horizontal...