Geologic map of the Sawmill Mountain quadrangle, Kern and Ventura Counties, California

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

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

This page is <https://geo-nsdi.er.usgs.gov/metadata/open-file/02-406/metadata.html>