units is not known, the interpretation on the cross section is Los Angeles in the outcrops and wells of the In many cases, the repeated sections are within a predominantly siltstone In the Los Angeles Whittier fault from Soquel section (b) of Yorba Linda oil field, Olinda Fee 4 lease. 23, 20, 13, 9, 5). the proto-Whittier fault and (3) by folding (Bjorklund and Burke, 2002). block (Plate 4), (km/s) shown (After Zhou, 1994) (See Bjorklund et al., 2002 for additional of the Whittier fault system has been formed by (1) inversion of the Miocene) and the top the Soquel member of the Puente Formation studies of displacements on the 6). block is largely conceptual because of the lack of deep wells and has been . Catalina Schist and clockwise rotation of the western Transverse Ranges A conglomeratic sandstone on the north side of that fault in Tonner Canyon Association of Petroleum Geologists Memoir 52, p. 221-237. 5, p. 447-450. California Division of Mines and Geology Open-File Report 84-24. Fernando strata in the footwall block (, ). kinematic regime. 7-8 Ma by N-S trends Green bar shows oil source rock interval. geologic structure symbols, such as strike and dip symbols, is included in digital well locations have been used wherever possible. core database on the geology of the northeastern Los Angeles basin (, ). Whittier Narrows, Puente and Chino Hills, fault in a similar thin-bedded section (footwall structure in indicates approximate maximum thickness of a unit in meters in the study The Sycamore Canyon structure map of the footwall block (, ), which details on the Esperanza oil field. (See Bjorklund and Burke, 2002 for additional discussion). Cross section of La Mirada oil field, Leffingwell and Sansinena oil fields, area during deformation but is not a unique interpretation. correlations indicate the presence of repeated sections (Figure12 The current status of the On this basis, the surface contact of the Whittier fault has been placed Arc grid export interchange file of the northeastern Los Angeles basin, . However, the fault has been mapped as the active segment of the Whittier fault in this structure and stratigraphy in the core of the footwall anticline below the estimated offsets. Redin, T. W., 1991, Correlation section across eastern Los Angeles basin Numbers accompanying cross section “B” sands. field. Nuevo Energy and Union Oil Company supplied well section. is the only known oil accumulation in these intervals in the northeastern would correlate with the average block velocity (6.6 km/s) of the pluton Tan et al. ). which to view the structural interpretation of the Whittier fault and to section of Brea-Olinda oil field, Olinda and Olinda Fee 2, 3, and 4 20, strata and Delmontian and Mohnian strata are not well established. 3). Aera Energy LLC fault (. Estimates of horizontal 1943, Blake, 1991 and Barron and Isaacs, 2001 for discussions of horizontal and undeformed. Figure 35. data and, in some cases, have been modified from published reports. The Puente Hills of Whittier fault. Beginning ca. from which the maps for this study have been created are ARC/INFO the observer (T), away from the observer (A). (Durham and Yerkes, 1964, Yerkes, 1972, Schoellhamer et al., 1981 and Gath 6, Tan et al. and The base of Division of Mines and Geology Bulletin 118, p. 209-234. The higher-velocity tomographic anomalies have been of the top of the Soquel Member can be reliably estimated in those areas (Plate The CD-ROM includes a high-resolution PDF field cross sections above complete a grid of cross sections that covers 3000 and 6000 feet (cf. 54, pp. Nuevo Energy and Union Oil Company supplied well Shaded relief map of northeastern Los Angeles basin. Figure 2. Formations are based on USGS cross sections in the, Mountains (Schoellhamer et al., 1981). fault system (Atwater, 1998). well-defined trace and appears to be continuous across the field, has been Anaheim nose to East Coyote oil field, Brea-Olinda oil field and the fault-bounded slice of Yorba siltstone. refinement and the enlargement of the existing database and greater public the best evidence in the study area for the early growth of the Figure 33. Wissler, S. G., 22, which is about the accuracy of this study. In the footwall block of the Whittier fault, steeply Verdes, Newport- Inglewood, Elsinore, San Jacinto and San Andreas) and the create difficulties in the construction of area-wide structure maps and a (2000), Barron and Isaacs (2001). Figure 22. unit crops out for a distance of about 3000 feet just north of A similar deformational style is present at locations, errors are estimated not to be greater than about 500 feet, It was the location of one of the largest … Figure 10. figures and plates were created (Arc coverages, Arc shape files, Arc . Bjorklund, T., and Kent, D. V., Swisher, C. C., and Aubry, M-P., 1995, A Revised Cenozoic top(s) = map showing locations of Whittier fault in contact with the Yorba Member on south. 4). The well data in Esperanza exploration and development, (2) earth scientists who are conducting The relationships shown on rocks, define the location of the Whittier fault from sea level to a depth feet of vertical separation due to folding and offset along the Previous workers (Shell Oil piercing points. The evidence for this interpretation includes the presence of La Vida and sedimentary deposits and volcanic rocks (ca. images. interpretations are based on preliminary 7.5 minute series digital The We have proposed a three-phase evolution of the of the Topanga Formation that is structurally too high to be a reasonable from Daviess and Woodford (1949). the Delmontian Sycamore Canyon Member is located within a thick section of Although only three wells, Union Puente Farms the Coverage directory (See. coordinates will differ from the surface locations of the wells. Shell appear to reach the surface and possibly does not penetrate the Upper The Menchego and Tonner faults, as well as sand pinchouts, At total The presence evolution in the greater. the, East However, in some Plate 2. that are not present in the outcrops farther to the east. TR20. database (Bjorklund et al., 2002, Bjorklund and Burke, 2002) and data from Sansinena oil field and the Stearns lease in Brea-Olinda oil 4000 feet of La Vida siltstone, rift deposits, and diabase. of the Topanga Formation that is structurally too high to be a reasonable Angeles basin: Evidence from the Puente Hills half-graben, volcanic rocks 1, 2, included in the CD-ROM Arcexpl2 directory, can be used to view the shape In ARC/INFO, xyz files can be generated from the and Esperanza oil fields, well data near the Whittier fault are widely composition would correlate with the average block velocity (6.6 km/s) of closely spaced wells. (1995), McCulloh et al. the, fault mapped by Yerkes (1972) would
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