Metadata: Identification_Information: Citation: Citation_Information: Originator: Karl S. Kellogg Originator: Daniel P. Miggins Publication_Date: 2002 Title: Geologic map of the Sawmill Mountain quadrangle, Kern and Ventura Counties, California Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 02-406 Publication_Information: Publication_Place: Denver, CO Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2002/ofr-02-406/ Description: Abstract: The Sawmill Mountain quadrangle is located in the western Transverse Ranges of California, about 10 km west of Frazier Park. It includes Mt. Pinos, Mt. Abel (Cerro Noroeste), a part of the southern San Emigdio Mountains, and straddles an eleven-kilometer reach of the nearly east-west striking "Big Bend" section of the San Andreas Fault. South of the San Andreas Fault, the oldest rocks include undated amphibolite-grade biotite and hornblende-biotite gneiss that is probably early or middle Proterozoic in age. The older gneiss is intruded by strongly deformed and foliated biotite orthogneiss that has an age on biotite of 67.2+0.5 Ma (Late Cretaceous). Several other weakly foliated to massive Late Cretaceous granitic plutons intrude the orthogneiss, one of which has a 40Ar/39Ar on biotite of 65.9+0.2 Ma. The youngest granitic pluton, the coarse-grained, locally porphyritic granite of Mt. Pinos, is undated, but assumed to be Late Cretaceous in age. These granitic and gneissic rocks were thrust northward over Pelona Schist, which has a 40Ar/39Ar age on muscovite of 63.24+0.26 Ma. All crystalline rocks were subsequently thrust westward on the Abel Mountain thrust over rocks of the Miocene Caliente Formation. A thick section of Eocene to Pliocene sedimentary and igneous rocks is exposed in the quadrangle. In the south part of the quadrangle, lacustrine and fluvial sediments and basaltic volcanic rocks of the Plush Range Formation are in fault contact with Eocene marine shales and, across the Big Pine fault, are mostly in fault contact with rocks of the Miocene Caliente Formation; locally, the Caliente unconformably overlies the rocks of the Plush Ranch Formation. The Caliente is unconformably overlain by the distinctive Lockwood Clay, which is successively overlain by the Pliocene Quatal and Morales Formations. Rocks north of the San Andreas Fault are mostly Early Cretaceous tonalite and granodiorite containing strongly hornfelsed roof pendants of marble, metasandstone, and metapelite. Some of these rocks have been thrust over a mid-Tertiary marine section of sandstones and silicic shales. The San Andreas Fault zone is as wide as 0.7 km and occupies a valley across most of the quadrangle. It is characterized by linear scarps, grabens, sag ponds and contains several enigmatic fault-bounded phacoids of exotic rocks apparently derived from many kilometers east of the quadrangle. Many of the prominent scarps probably resulted from the giant Ft. Tejon earthquake of 1859. Purpose: To update and reinterpret earlier geologic mapping, and to achieve a uniform regional geologic database. Supplemental_Information: ArcInfo coverages, shapefiles and basemap image included in this dataset: >smpoly (.shp) >smpoint (.shp) >smline (.shp) >smsym (.shp) map 'decorations' if desired >sawmillbase.tif (.tfw) Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Currentness_Reference: publication date Status: Progress: complete Maintenance_and_Update_Frequency: Irregular. Mapping is continuing in adjacent quadrangles and revisions may be made as required. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -119.25 East_Bounding_Coordinate: -119.125 North_Bounding_Coordinate: 34.875 South_Bounding_Coordinate: 34.75 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: geology Theme_Keyword: geologic maps Theme_Keyword: bedrock geologic units Theme_Keyword: geologic structure Theme_Keyword: faulting (geologic) Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: American Geological Institute (AGI) Glossary of Geology Theme_Keyword: Geologic map Theme_Keyword: Sawmill Mountain, California Theme_Keyword: Pine Mountain Club Theme_Keyword: Mount Abel Theme_Keyword: San Andreas Fault Theme_Keyword: Big Pine Fault Theme_Keyword: Cretaceous rocks Theme_Keyword: San Emigdio Mountains Theme_Keyword: Tertiary rocks Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Categories Theme_Keyword: geoscientificInformation Place: Place_Keyword_Thesaurus: Board of Geographic Names Place_Keyword: USA Place_Keyword: California Place_Keyword: Ventura County Place_Keyword: Kern County Place: Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4 Place_Keyword: f06029 = Kern Stratum: Stratum_Keyword_Thesaurus: none Stratum_Keyword: Pelona Schist Stratum_Keyword: Simmler Formation Stratum_Keyword: Plush Ranch Formation Stratum_Keyword: Caliente Formation Stratum_Keyword: Lockwood Clay Stratum_Keyword: Quatal Formation Stratum_Keyword: Morales Formation Access_Constraints: none Use_Constraints: none. Acknowledgment of the U.S. Geological Survey would be appreciated in products derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Karl Kellogg Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: mailstop 980 Box 25046, Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-1305 Contact_Facsimile_Telephone: 303-236-0214 Contact_Electronic_Mail_Address: kkellogg@usgs.gov Native_Data_Set_Environment: Windows_NT, 5.0, Intel ARC/INFO version 8.1 Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2002/ofr-02-406/ofr-02-406.pdf Browse_Graphic_File_Description: Printable representation of the map layout, 2.7 megabytes Browse_Graphic_File_Type: PDF Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data was entered and checked by the geologist who made the observations. The attributes of this geospatial data set consist of text identifiers and numeric codes that indicate the identity of the geologic unit or type of geologic feature, and determine how each feature is colored or symbolized. To check attribute accuracy, a color check plot was visually compared to the geologist's original compilation. Discrepancies between the digital geospatial dataset and the original analog compilation were corrected as needed. Machine-created listings of unique attribute values were used to identify spelling errors or other inconsistencies, and corrections were made as needed. This map was been thoroughly reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Logical_Consistency_Report: Polygon and chain-node topology present. Map elements were visually checked by the author for overshoots, undershoots, duplicate features, polygon attributes, and other errors. Automated (ARC/INFO) routines were also used to check the databases for polygon label errors, line or point attribution errors, sliver polygons, dangling arcs, intersection errors, and projection information. The map was reviewed by one other geologist for consistency with basic geologic principles and general conformity to USGS mapping standards. Completeness_Report: No features were eliminated or generalized. Unit properties are described in the text explanation. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Lines were primarily mapped by ground investigation and photointerpretation of 1:24,000-scale color aerial photographs. These lines were digitized from the topographic field sheets and from annotated aerial photographs. Most digitized positions on the map are estimated to have about 20 m horizontal accuracy. Additional point observations were added using positions determined by a Rockwell PLGR-96 GPS unit with horizontal accuracy of about 10 meters. There is no elevation data in the database. Lineage: Process_Step: Process_Description: Polygons, lines, and points representing geologic features and data points were digitized from scale-stable compilation materials using the GSMCAD public domain program (USGS Open-File Report 96-007). Process_Date: 1999 Process_Step: Process_Description: The map data were exported to ARC/INFO using the GSMCAD export function to create ARC generate ASCII files. The ASCII files were then imported into ArcInfo using the GENERATE routine, and polygon topology built. Process_Date: 2000 Process_Step: Process_Description: Text map unit descriptors were added to the .AAT and .PAT database files for each coverage. Process_Date: 2000 Process_Step: Process_Description: Draft check plots of the geologic map and explanation were created and submitted for peer review. Geologists reviewed the plots for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Revisions were made to the geospatial database as needed. Process_Date: 2001 Process_Step: Process_Description: The geospatial database files and metadata were quality checked for completeness and consistency. Process_Date: 2002 Process_Step: Process_Description: First draft of metadata created by paco vansistine using FGDCMETA.AML ver. 1.32 01/11/99 Process_Date: 20020916 Process_Step: Process_Description: Creation of original metadata record Process_Date: 20020916 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Paco VanSistine Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey MailStop 980 - Denver Federal Center City: denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-5452 Contact_Electronic_Mail_Address: dsistine@usgs.gov Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 35.46666666667 Standard_Parallel: 34.03333333333 Longitude_of_Central_Meridian: -118 Latitude_of_Projection_Origin: 0 False_Easting: 0 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 1.399974942207 Ordinate_Resolution: 1.399974942207 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: >Coverage names in this dataset: >SMPOLY >SMLINE >SMPOINT > >SMPOLY.PAT:< > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 4 12 F 3 > 5 PERIMETER 4 12 F 3 > 9 SMPOLY# 4 5 B - > 13 SMPOLY-ID 4 5 B - > 17 TEXT 6 6 C - > 23 SYMBOL 4 4 I - > 27 DESCRIPTION 125 125 C - > >ITEM EXPLANATIONS: >TEXT - geologic unit label >SYMBOL - unique number given to map unit representing color value taken from shadeset 'color524.shd' >DESCRIPTION - brief geologic explanations of map units > >TEXT SYMBOL DESCRIPTION >JXma 259 Marble (Jurassic? to Lower Proterozoic?) >JXqz 205 Quartzite (Jurassic? to Lower Proterozoic?) >KXgb 66 Granite of Cerro Noroeste and biotite gneiss, undivided (Cretaceous and lower Proterozoic) >KXmg 504 Migmatitic biotite gneiss (Cretaceous? and Lower Proterozoic) >Kgbx 483 Green silicified sedimentary rocks (Cretaceous?) >Kgd 171 Quartz diorite and granodiorite (Cretaceous) >Kgdg 98 Granodiorite gneiss (Cretaceous?) >Kgp 79 Granite of Mt. Pinos (Cretaceous) >Kgpb 76 Border phase (Cretaceous) >Kgr 146 Granitic rocks (Cretaceous) >Kgrn 135 Granite of Cerro Noroeste (Cretaceous) >Kgro 62 Orange granite (Cretaceous) >MzPzhf 75 Hornfels (Jurassic, Triassic and/or late Paleozoic) >MzPzmg 287 Gray marble (Jurassic, Triassic and/or late Paleozoic) >MzPzms 67 Meta-sandstone (Jurassic, Triassic and/or late Paleozoic) >MzPzmw 307 White marble (Jurassic, Triassic and/or late Paleozoic) >MzPzqz 356 Quartzite (Jurassic, Triassic and/or late Paleozoic) >QTgo 450 Fault gouge (Holocene to Miocene) >Qa 3 Alluvium (Holocene) >Qac 7 Alluvium and colluvium (Holocene) >Qae 52 Alluvium of San Emigdio Mesa (middle Pleistocene) >Qc 18 Colluvium (Holocene) >Qd 24 Diamicton (middle? Pleistocene) >Qf1 486 Younger fan deposit (Holocene) >Qf2 485 Older fan deposits (Holocene and upper Pleistocene) >Qf3 490 Highly dissected fan deposits (middle? Pleistocene) >Qls 32 Landslide deposits (Holocene and/or upper Pleistocene) >Qlsr 33 Recent landslide deposit (Holocene) >Qw 452 Wetland deposits (Holocene) >TKmbx 479 Mylonite breccia (lower Tertiary to Cretaceous?) >Tca 156 Arkosic member of Caliente Formation (Miocene) >Tcc 131 Volcanic-clast conglomerate member of Caliente Formation (Miocene) >Tcg 97 Granite-clast conglomerate member of Caliente Formation (Miocene) >Tcp 163 Sedimentary breccia and sandstone of Cowhead Potrero (Miocene) >Tcr 129 Red sandstone and siltstone member of Caliente Formation (Miocene) >Tcu 147 Upper Caliente Formation, undifferentiated (Miocene) >Tcw 131 White sandstone and conglomerate member of Caliente Formation (Miocene) >Tlc 143 Lockwood Clay (Pliocene?) >Tm 386 Morales Formation (Pliocene) >Tmsh 399 Marine shale (lower Eocene) >Tmy 341 Abel Mountain mylonite (Paleocene?) >Tpb 191 Granite-and gneiss-breccia facies of Plush Ranch Formation (lower Miocene and upper Oligocene) >Tpba 154 Basalt member of Plush Ranch Formation (lower Miocene and upper Oligocene) >Tpbn 214 Gneiss-breccia facies of Plush Ranch Formation (lower Miocene and upper Oligocene) >Tpbx 202 Granite megabreccia member of Plush Ranch Formation (lower Miocene and upper Oligocene) >Tpl 231 Lacustrine member of Plush Ranch Formation (lower Miocene and upper Oligocene) >Tps 227 Pelona Schist (Paleocene) >Tqb 326 Brown member of Quatal Formation (Pliocene) >Tqw 295 White arkosic sandstone member of Quatal Formation (Pliocene) >Ts 136 Simmler Formation (lower Miocene to upper Eocene) >Tt 84 Temblor Formation (middle? Miocene) >Twa 123 White arkosic sandstone and conglomerate (Miocene?) >Xag 92 Biotite augen gneiss (Lower Proterozoic) >Xbg 93 Biotite gneiss (Lower Proterozoic) >Xbhg 71 Biotite-hornblende gneiss (Lower Proterozoic) > >SMPOLY.AAT:< > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 FNODE# 4 5 B - > 5 TNODE# 4 5 B - > 9 LPOLY# 4 5 B - > 13 RPOLY# 4 5 B - > 17 LENGTH 4 12 F 3 > 21 SMPOLY# 4 5 B - > 25 SMPOLY-ID 4 5 B - > 29 DESCRIPTION 80 80 C - > 109 SYMBOL 5 5 I - > >ITEM EXPLANATIONS: >SYMBOL - unique number given to line feature representing values taken from lineset 'geol_sfo.lin' >DESCRIPTION - description of line features, using digital cartographic standards > >SYMBOL DESCRIPTION >1 contact-certain >2 contact-approximately located >173 contact-certain >216 fault-approximately located >227 map boundary > >SMLINE.AAT:< > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? > 1 FNODE# 4 5 B - - > 5 TNODE# 4 5 B - - > 9 LPOLY# 4 5 B - - > 13 RPOLY# 4 5 B - - > 17 LENGTH 4 12 F 3 - > 21 SMLINE# 4 5 B - - > 25 SMLINE-ID 4 5 B - - > 29 DESCRIPTION 80 80 C - - > >ITEMS EXPLANATIONS: >DESCRIPTION - description of line features, using digital cartographic standard > >DESCRIPTION >anticline-certain >anticline-concealed >contact-concealed >cross section >fault-concealed >landslide scarp-certain >normal fault-concealed >normal fault-concealed, queried >reverse fault-concealed >syncline-certain >syncline-concealed >thrust fault-concealed > >SMPOINT.PAT:< > >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME INDEXED? > 1 AREA 4 12 F 3 - > 5 PERIMETER 4 12 F 3 - > 9 SMPOINT# 4 5 B - - > 13 SMPOINT-ID 4 5 B - - > 17 DESCRIPTION 80 80 C - - > 97 ROTATION 7 7 I - - > 104 INCLINATION 5 5 I - - > >ITEM EXPLANATIONS: >DESCRIPTION - description of point features, using digital cartographic standard >ROTATION - compass direction of bedding trend, in degrees >INCLINATION - angle of bedding dip, in degrees from horizontal > >DESCRIPTION >anticline symbol >ball & bar symbol >dip tic symbol >fault dip symbol >fold plunge arrow symbol >horizontal bedding >inclined bedding-showing approximate strike and dip >inclined bedding-showing strike and dip >inclined bedding-showing strike and dip, top direction of beds known >inclined foliation-showing approximate strike and dip >inclined foliation-showing strike and dip >lineation-showing bearing and plunge >overturned anticline symbol >overturned bedding-showing strike and dip >overturned bedding-showing strike and dip, top direction of beds known >sample locations >syncline symbol >vertical bedding-showing strike >vertical bedding-showing strike, top of beds known >vertical foliation-showing strike > >ROTATION >range of values: 0 - 359 > >INCLINATION >range of values: 0 - 90 Entity_and_Attribute_Detail_Citation: http://pubs.usgs.gov/of/2002/ofr-02-406/ofr-02-406_pamphlet.pdf Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing address Address: USGS Information Services Box 25286 City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 1-888-ASK-USGS Distribution_Liability: Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Format_Version_Number: 8.1 Format_Information_Content: Geologic units and structural features File_Decompression_Technique: gzip -d and tar or unzip Transfer_Size: 5.4 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2002/ofr-02-406/downloads/of-02-406.tar.gz Network_Resource_Name: http://pubs.usgs.gov/of/2002/ofr-02-406/downloads/of-02-406.zip Digital_Form: Digital_Transfer_Information: Format_Name: Shapefile Format_Version_Number: 1.0 Format_Information_Content: Geologic units and structural features File_Decompression_Technique: gzip -d and tar or unzip Transfer_Size: 5.4 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2002/ofr-02-406/downloads/of-02-406.tar.gz Network_Resource_Name: http://pubs.usgs.gov/of/2002/ofr-02-406/downloads/of-02-406.zip Fees: none Metadata_Reference_Information: Metadata_Date: 20160205 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Midwest Area Contact_Position: Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/ Contact_Address: Address_Type: mailing address Address: Mail Stop 954 12201 Sunrise Valley Dr City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none