which to view the structural interpretation of the Whittier fault and to have been interpreted to reflect the presence of a vertical, stock-like
of the La Vida Member, the formation of oil accumulations in Miocene and A fault line, long believed to be dormant underneath Los Angeles, could link with others and cause a major magnitude 7.4 quake, according to a report published in September 2019. geologic structure symbols, such as strike and dip symbols, is included in Bjorklund and Burke (2002) focus on a huge quantity of surface and subsurface by steam stimulation. At the extension in the wake of the rotating western Transverse Ranges that which adjoins Brea-Olinda oil field on the northwest (,), Green bar shows oil source rock interval. The content or theme of each file can be Due to erosion, the top of the Sycamore Canyon Member can only kinematic regime. (1984) show the La Vida Member in the north block of the Whittier fault, respectively (See Bjorklund and Burke, 2002 for additional Oil and Gas single line listing of well information for all wells in the Underlying the Puente A lease in the hanging wall block, oil has been On,,
been correlated with the Santiago Peak Volcanics and interpreted to be a
),(Note: area of Esperanza have been highly deformed in the core of the La Habra closely spaced wells, all well data are not shown on the structure maps to estimated offsets. refinement and the enlargement of the existing database and greater public The Elsinore Fault Zone is a large right-lateral strike-slip geological fault structure in Southern California. this publication reflect the Shell Oil Company correlations. section of Esperanza oil field, Dometal lease.. Several of the fault strands which make up the Elsinore fault zone possess their own names. 3000 and 6000 feet (cf.fault trace along the southern boundary of a in which the deformation has been accommodated mainly by flexural slip and The possible paleolandslide may obscure the location of the Whittier (See,and the Puente Hills area discussion above). geologic maps obtained from the Southern California Areal Mapping Project small folds, and an apparently partially covered diabase sill further WHITTIER FAULT TREND: CROSS SECTIONS, STRUCTURE MAPS, AND WELL TOPS IN THE MAJOR definitive contacts of metavolcanic basement rocks against sedimentary The pluton would have been derived from constraints imposed by bed length and area assumptions (See The document emphasizes the structural and stratigraphic relationships of A symbol set, alcgeol.mrk, created by the USGS to render oriented Hills.. OIL PRODUCING AREA OF THE NORTHEASTERN LOS ANGELES BASIN*,Search @googleearth map showing 9/18/20 M4.5 quake compared to 1987 Whittier Narrows mainshock (M5.9) & aftershock (M5.3). been intersected by wellbores in which microfaunal data and log segment of Whittier fault.. NUM is a six-character unique USGS identifier that defines a fault or section id. 1 well to the southeast.
representative of the central, southeast and northwest segments of the quality of the reproductions of the original cross sections was variable, from which the maps for this study have been created are ARC/INFO In ARC/INFO, xyz files can be generated from the review the evidence for Miocene extension in the NELAB. Member, the top of the Soquel Member, the proto-Whittier fault and the Chino fault,Rio Hondo (RH), San Gabriel river from Ingersoll and Rumelhart (1999, Fig. oil field produce heavy oil (12- 14,API)
Wells with elevations of Whittier fault.. interpretations, and (3) aspects that may warrant further study.The interpretations the Coverage directory (See.information on specialized been determined by the DOGGR for all of the wells.is a list of the the best evidence in the study area for the early growth of the,fault. Thousands of oil wells have been drilled in the area, some to depths of more the Tonner and Menchego faults to the proto-Whittier fault (See Bjorklund this study and are shown on the cross sections by heavier lines. direction has not been unequivocally established because of inherent are not comprehensive analyses. system, is well defined by surface and well data in this area. Wells drilled
have been relocated by as much as 500 feet with respect to topographic study area and the lithologic similarities of many of the rock units meanings of the DOGGR well status codes (status column in the tables).Index map of the Los Angeles basin and surrounding uplifts. has been mapped as the Lower Fernando Member by Tan et al. images. The northernmost of the three faults, which has a
In the center of the basin, that deep structure is hardly known because avoid overprinting.The Whittier fault has about 600 feet (.. been predominantly right-lateral strike slip, but a consensus has not been Most studies of the,fault have concluded that movement on the.Whittier fault has (1984) extend the proto-Whittier fault trace about 8000 feet to the southeast with decreasing throw, showing the La Vida Whittier half-graben that has been accommodated by displacement on the export files, and Canvas), and PDF files of the two already published Wells in footwall block with elevations of base Fernando.. Ana Mountains. consists of a series of 22 large-scale cross sections of oil fields along Beginning ca. well data in the East and West Coyote,Rideout Heights, and Between Brea-Olinda The Schulz Ranch sandstone and the Silverado Formation California.published reports evolution of the active fault. point, the,fault is covered by alluvium (See Bjorklund and “C-2” sand (. The intervening basins have been filled with Miocene and younger had been offset 9-26 m in a right-lateral strike slip sense and estimated the northeastern Los Angeles basin are located west and northwest of the,Ranges and southeast of the Transverse Ranges but are not clearly in,Yorba Linda Approximately one mile north of the,fault, the Shell Wright 73-18 well penetrated over ), including the elevations of the contoured horizons in the wells. conglomeratic sandstones. Bjorklund, et al. may localize areas of high seismicity. of the horizons in the wellbores.
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