McLaughlin, R.J., Moring, B.C., Hitchcock, C.S., and Valin, Z.C., 2018, Framework geologic map and structure sections along the Bartlett Springs Fault Zone and adjacent area from Round Valley to Wilbur Springs, northern Coast Ranges, California: SIM 3395 U.S. Geological Survey Scientific Investigation Map, U.S. Geological Survey, Reston, Virginia.Online Links:
- https://doi.org/10.3133/sim3395
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000000
Ordinates (y-coordinates) are specified to the nearest 0.000000
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
| Value | Definition |
|---|---|
| contact | A plane or irregular surface between two types or ages of rock; examples include intrusive borders, bedding planes separating distinct strata, and unconformities. Well located |
| contact, approx. located | A plane or irregular surface between two types or ages of rock; examples include intrusive borders, bedding planes separating distinct strata, and unconformities. Approximately located |
| contact, concealed | A plane or irregular surface between two types or ages of rock; examples include intrusive borders, bedding planes separating distinct strata, and unconformities. Location concealed beneath younger deposits |
| contact, internal | irregular surface between landslide deposits |
| contact, queried | Possible contact, poorly observed |
| fault | A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Well Located |
| fault, approx. located | A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Approximately located. |
| fault, concealed | A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Concealed under younger deposits |
| fault, approx. queried | A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. approximately, existence uncertain |
| fault, concealed, queried | A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other. Concealed under younger deposits, existence uncertain |
| fault, inferred from imagery | fault inferred from Google Earth Imagery |
| layering (not symbolized on associated map) | A succession of tabular units exhibiting distinct variation in mineralogy, textural or structural characteristics within igneous, sedimentary, or metamorphic rocks; or the formation of tabular bodies at different rock type, one upon the other |
| map boundary | Boundary of mapping |
| scratch | symbolized boundary between map two map units with no inference to locational accuracy |
| tuff | Consolidated or cemented volcanic ash and lapilli |
| water boundary | mapped boundary between land and water |
| Value | Definition |
|---|---|
| {Null Value / Empty Field Entry} | Unknown |
| 01.01.01 | Unknown |
| 01.01.03 | Unknown |
| 01.01.04 | Unknown |
| 01.01.07 | Unknown |
| 01.01.09 | Unknown |
| 01.02.09 | Unknown |
| 01.03.07 | Unknown |
| 02.01.01 | Unknown |
| 02.01.03 | Unknown |
| 02.01.05 | Unknown |
| 02.01.06 | Unknown |
| 02.01.07 | Unknown |
| 02.01.08 | Unknown |
| 04.01.01 | Unknown |
| 30.02.01 | Unknown |
| 31.08 | Unknown |
650.329.4945 (voice)
rjmcl@usgs.gov
This database and accompanying plot files depict the distribution of geologic materials and structures at 1:100,000 scale. The report is intended to provide geologic information for the regional study of materials properties, earthquake shaking, landslide hazards, mineral potential, seismic velocity, and earthquake faults. In addition, the report contains new information and interpretations about the regional geologic history and framework. However, the scale of this report does not provide sufficient detail for site development purposes. In addition, this map does not take the place of fault-rupture hazard zones designated by the California State Geologist. Similarly, although numerous landslides are mapped, the database does not identify or delineate all landslides in the map area or their present states of activity.
Berkland, J.O., 1969, Late Mesozoic and Tertiary sequence near the proposed Garrett Tunnel, Mendocino and Lake Counties, California: Sacramento, Calif., U.S. Bureau of Reclamation Region.
Berkland, J.O., 1973, Rice Valley outlier-New sequence of Cretaceous-Paleocene strata in northern Coast Ranges, California: Geological Society of America Bulletin.
Blake, M.C., Jr., Helley, E.J., Jayko, A.S., Jones, D.L., and Ohlin, H.N., 1992, Geologic map of the Willows 1: 100,000 quadrangle, California: U.S. Geological Survey Open-File Report 92-271 100,000 quadrangle, California: U.S. Geological Survey Open-File Report 92-271.
Brown, R.D., Jr., 1964, Geologic map of the Stonyford quadrangle, Glenn, Colusa and Lake Counties, California: U.S. Geological Survey Mineral Investigations Field Studies Map MF-279.
Brown, R.D., Jr., Grimes, D.J., Leinz, R., Federspiel, F.E., Leszcykowsky, A.M., and Griscom, A., 1981, Mineral Resources of the Snow Mountain Wilderness Study Area, California: U.S. Geological Survey Bulletin.
Clark, S.G., 1940, Geology of the Covelo District, Mendocino County, California: University of California Department of Geology Bulletin.
Etter, S.D., 1979, Geology of the Lake Pillsbury area, northern Coast Ranges [Ph.D. dissertation]: Austin, University of Texas.
Hearn, B.C., Jr., Donnelly-Nolan, J.M., and Goff, F.E., 1995, Geologic map and structure sections of the Clear Lake volcanics, northern California: U.S. Geological Survey Miscellaneous Investigation Series I-2362.
Jayko, A.S., Blake, M.C., Jr., McLaughlin, R.J., Ohlin, H.N., Ellen, S.D., and Kelsey, H., 1989, Reconnaissance geologic map of the Covelo 30- by 60-minute quadrangle, northern California: U.S. Geological Survey Miscellaneous Field Studies Map MF-2001.
Lawton, J.E., 1956, Geology of the north half of the Morgan Valley quadrangle and the south half of the Wilbur Springs quadrangle, California [Ph.D. dissertation]: Stanford, Calif., Stanford University.
Lehman, D.H., 1974, Structure and petrology of the Hull Mountain area, northern California Coast Ranges [Ph.D. dissertation]: Austin, University of Texas.
McLaughlin, R.J., 1978, Preliminary geologic map and structural sections of the central Mayacmas Mountains and The Geysers steam field, Sonoma, Lake, and Mendocino Counties, California: U.S. Geological Survey Open-File Map.
McLaughlin, R.J., Ohlin, H.N., and Thormahlen, D.J., 1990, Geologic map and structure sections of the Little Indian Valley-Wilbur Springs geothermal area, northern Coast Ranges, California: U.S. Geological Survey Miscellaneous Investigations Map I-1706.
Ohlin, H.N., McLaughlin, R.J., Moring, B.C., and Sawyer, T.L., 2010, Geologic map of the Bartlett Springs Fault Zone in the vicinity of Lake Pillsbury and adjacent areas of Mendocino, Lake, and Glenn Counties, California: U.S. Geological Survey Open File Report.
Shervais, J.W., Murchey, B.L., Kimbrough, D.L., Renne, P.R., and Hanan, B.B., 2005, Radioisotopic and biostratigraphic age relations in the Coast Range Ophiolite of northern California: Implications for the tectonic evolution of the Western Cordillera: Geological Society of America Bulletin.
Shervais, J.W., Zoglman Schuman, M.M., and Hanan, B.B., 2005, The Stonyford Volcanic Complex: a forearc seamount in the Northern California Coast Ranges: Journal of Petrology.
Stanford, J.E., 1991, Geology of the Franciscan Complex Central Belt between Redwood Valley and Potter Valley, Mendocino County, California [M.S. thesis]: Hayward, Calif., California State University.
Suppe, John, and Foland, K.A., 1978, The Goat Mountain Schists and Pacific Ridge Complex-A redeformed but still-intact late Mesozoic Franciscan schuppen complex, in Howell, D.G., and McDougall, Kristen, eds., Mesozoic paleogeography of the western United States: Society of Economic Paleontologists and Mineralogists, Pacific Section, Pacific Coast Paleogeography Symposium.
Swe, W., and Dickinson, W.R., 1970, Sedimentation and thrusting of late Mesozoic rocks in the Coast Ranges near Clear Lake, California: Geological Society of America Bulletin.
Lienkaemper, J.J., 2010, Recently active traces of the Bartlett Springs Fault, California: A Digital Database: U.S. Geological Survey Data Series.
Data sources used in this process:
Data sources used in this process:
Data sources used in this process:
No formal attribute accuracy tests were conducted.
A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. The database was created for producing a geologic map of a 1:100,000 scale. Source maps varied from 1:12,000 to smaller the 1:500,000
NA
Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
Various logical accuracy tests were conducted. They include: Depositional contacts only separate different units; All concealed contacts or faults separate only identically tagged units; All adjacent terranes are in fault contact with each other (no depositional contacts); All water bodies are fully surrounded with lines tagged "water boundary."
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Uses of this digital geologic map should not violate the spatial resolution of the data. This database was edited for a publishing at scale of 1:100,000; higher resolution information may not be present in the dataset. Plotting at scales larger than 1:100,000 will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database.
Acknowledgement of the U.S. Geological Survey would be appreciated in products derived from these data.
U.S. Geological Survey assumes no liability for misuse of these data.
Downloadable Data
Distributor assumes no liability for misuse of data.
| Data format: | Vector Digital Data Set (Polyline) Size: 13.948 |
|---|
650.329.5360 (voice)
moring@usgs.gov