Identification_Information:
Citation:
Citation_Information:
Originator: Emily M. Taylor
Originator: Donald S. Sweetkind
Publication_Date: 2014
Title: Quaternary Geologic Map of the North-Central Part of the Salinas River Valley and Arroyo Seco, Monterey County, California
Edition: version 1.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: USGS Scientific Investigations Map
Issue_Identification: SIM 3260
Publication_Information:
Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey
Online_Linkage: http://dx.doi.org/10.3133/sim3260
Description:
Abstract: Arroyo Seco, a perennial drainage in the central Coast Range of California, records a sequence of strath terraces. These terraces preserve an erosional and depositional history, primarily controlled by regional climate changes. These deposits have been mapped and correlated on the basis of field investigations, digital terrain analysis, stream gradient profiles, evaluation of published regional soil maps, and satellite imagery. Seven of the strath terraces and associated alluvial fans have been dated by Optically Stimulated Luminescence (OSL) or Infrared Stimulated Luminescence (IRSL). OSL and IRSL dates on seven of the strath terraces and associated alluvial fans in Arroyo Seco are approximately >120 ka, >65 ka, 51-46 ka, 35 ka, 9 ka, and 2-1 ka. These dates generally fall within the range of ages reported from the Transverse Ranges, which have a similar climate to that of Arroyo Seco.
Purpose: The maps are intended as a database for a variety of land-use and scientific purposes, including (1) assessment of geologically stable building sites, (2) planning for road and highway construction, (3) assessment of groundwater resources, (4) assessment of mineral resources, (5) determining geologic-hazard potential (flooding, landslide, rockfall, and seismic risk), (6) evaluating the structure of the northern Salinas River valley, (7) improvement in understanding of the sedimentary section, which spans the period from the Paleozoic to the Holocene, and (8) new insights into the geologic history of the strath terraces in Arroyo Seco, including a number of new radiometric dates.
Supplemental_Information:
FEATURE CLASSES INCLUDED IN THIS GEOSPATIAL DATABASE:
GEOLOGY Feature Dataset:
ArroyoSeco_line - linear polyline features (contacts, faults)
ArroyoSeco_poly - geologic unit polygons
ArroyoSeco_label - polygon labels (attributes)
ArroyoSeco_OSLsample - OSL and IRSL sample sites
ArroyoSeco_inset_map_boundary - boundary of inset map
RASTER FILES:
ArroyoSeco_hillshd.tif
ArroyoSeco_hillshd.tfw
ArroyoSeco_topo.tif
ArroyoSeco_topo.tfw
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2013
Currentness_Reference: 2013
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -121.50
East_Bounding_Coordinate: -121.125
North_Bounding_Coordinate: 36.375
South_Bounding_Coordinate: 36.125
Keywords:
Theme:
Theme_Keyword_Thesaurus: AGI Glossary of Geology
Theme_Keyword: Quaternary
Theme_Keyword: strath terraces
Theme_Keyword: alluvial deposits
Theme_Keyword: fan deposits
Theme_Keyword: Paso Robles Formation
Theme_Keyword: paleovalley
Place:
Place_Keyword_Thesaurus: U.S. Board on Geographic Names (BGN)
Place_Keyword: USA
Place_Keyword: California
Place_Keyword: Central Coast
Place_Keyword: Monterey County
Place_Keyword: Salinas River valley
Place_Keyword: Arroyo Seco
Temporal:
Temporal_Keyword_Thesaurus: International Commission on Stratigraphy
Temporal_Keyword: Cenozoic
Temporal_Keyword: Quaternary
Access_Constraints: none
Use_Constraints: Users of this geospatial database and geologic information derived there from should acknowledge the U.S. Geological Survey as the source of the data. Although software enables a user to display images at various scales, map data in this report should not be used at scales greater that 1:15,000.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily M. Taylor
Contact_Organization: U.S. Geological Survey, Geosciences and Environmental Change, Denver, Colorado
Contact_Position: Project Geologist
Contact_Address:
Address_Type: mailing address
Address: USGS, MS 980, Box 25046, Denver Federal Center
City: Denver
State_or_Province: Colorado
Postal_Code: 80225
Contact_Voice_Telephone: 303-236-8253
Contact_Facsimile_Telephone: 303-236-5349
Contact_Electronic_Mail_Address: emtaylor@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: http://pubs.usgs.gov/sim/3260/downloads/sim3260_map.pdf/
Browse_Graphic_File_Description: Graphical representation of the map
Browse_Graphic_File_Type: pdf
Data_Set_Credit:
Technical reviews by Lew Rosenberg and Marith C. Reheis led to significant improvements that eventually were reflected in aspects of the database, the plot file, and in the discussion of the regional geologic framework and the description of the geologic units of the north-central part of the Salinas River valley and Arroyo Seco in Monterey County, California. Digital review by Paco VanSistine.
Geologic mapping and digital preparation of this report were sponsored by the National Cooperative Geologic Mapping Program of the U.S. Geological Survey.
Native_Data_Set_Environment: Microsoft Windows Version 7. ArcMap/ArcInfo version 10.0
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Data were entered and checked by the geologist that made the field 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 or digital 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.
Logical_Consistency_Report: Map elements were visually checked for overshoots, undershoots, duplicate features, polygon closure, and other errors by the author and by the GIS technician(s) that created the digital database. Automated 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. Check plots of the map were reviewed by at least two other geologists for consistency with basic geologic principles and general conformity to USGS mapping standards.
Completeness_Report: Data are complete: no features that could be accurately represented at the compilation scale of 1:50,000 were eliminated or generalized. The smallest area represented is approximately 110 square meters. All geospatial database elements are attributed.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: Most digitized positions on the map that depict distinct contacts between rock formations in the field are estimated to be within 20 m of the actual contact on the land in most instances. Boundaries (lines) between Quaternary units (for example, alluvial fans) that correspond closely to distinct edges of landforms (for example, river terraces) are of comparable accuracy. Boundaries (lines) between some Quaternary units, such as eolian deposits and broad alluvial aprons, are approximately located within an indefinite gradational zone between them. Horizontal positional accuracy is tested by visual comparison of hard copy test plots to source maps or comparing locations of data on a computer monitor to other data layers in the same geographic area. The database contains elevation data. Accuracy of these digital data indirectly depends on accuracy of the base maps on which the original source geologic maps were compiled. These base maps were made by the U.S. Geological Survey, which routinely checks them for compliance with the National Map Accuracy Standards.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: United States Department of Agriculture, Natural Resources Conservation Service
Title: Spatial and tabular data of the Soil Survey for Monterey County, California
Publication_Date: 2010
Geospatial_Data_Presentation_Form: Tabular digital data and vector digital data
Publication_Information:
Publication_Place: Fort Worth, Texas
Publisher: Soil Survey Staff, Natural Resources Conservation Service, United States Department of Agriculture. Web Soil Survey.
Online_Linkage: http://websoilsurvey.nrcs.usda.gov/ OR http://datagateway.nrcs.usda.gov/GDGOrder.aspx, Go to California, Monterey County, Soils, Soil Survey Spatial and Tabular Data (SSURGO 2.2), 2 maps 50.291 MB
Type_of_Source_Media: digital
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2010
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: USDA (2010)
Source_Contribution: geologic content
Source_Information:
Source_Citation:
Citation_Information:
Originator: Durham, D.L.
Title: Geology of the Reliz Canyon, Thompson Canyon, and San Lucas quadrangles, Monterey County, California
Publication_Date: 1963
Series_Information:
Series_Name: U.S. Geological Survey Bulletin
Issue_Identification: 1141-Q
Source_Scale_Denominator: 24000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1963
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Durham (1963)
Source_Contribution: geologic content
Source_Information:
Source_Citation:
Citation_Information:
Originator: Durham, D.L.
Title: Geology of the Sycamore Flat and Paraiso Springs quadrangles, Monterey County, California
Publication_Date: 1970
Series_Information:
Series_Name: U.S. Geological Survey Bulletin
Issue_Identification: 1285
Source_Scale_Denominator: 24000
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1970
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Durham (1970)
Source_Contribution: geologic content
Source_Information:
Source_Citation:
Citation_Information:
Originator: Durham, D.L
Title: Geology of the southern Salinas Valley area, California
Publication_Date: 1974
Series_Information:
Series_Name: U.S. Geological Survey Professional Paper
Issue_Identification: 819
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1974
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Durham (1974)
Source_Contribution: geologic content
Source_Information:
Source_Citation:
Citation_Information:
Originator: Snetsinger, K.G.
Title: Late Tertiary and Quaternary history of the lower Arroyo Seco area, Monterey County, California
Publication_Date: 1962
Series_Information:
Series_Name: Palo Alto, CA, Stanford University, unpub. M.S. thesis
Issue_Identification: unknown
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1962
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Snetsinger (1962)
Source_Contribution: geologic content
Process_Step:
Process_Description: Geology was mapped during the period 2010 to 2012.
Process_Date: 2012
Process_Step:
Process_Description: Geologic polygon, line, and point features were attributed and revised in ArcInfo.
Process_Date: 2010-2012
Process_Step:
Process_Description: Metadata created by Emily Taylor.
Process_Date: 2013
Process_Step:
Process_Description: The database files, metadata, and check plots were edited by the USGS Science Publishing Network, and revisions made to the geospatial database as needed.
Process_Date: 2012-2013
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 10
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.99960000
Longitude_of_Central_Meridian: -123.00000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0001
Ordinate_Resolution: 0.0001
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
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:
FEATURE CLASSES IN THIS DATABASE:
ArroyoSeco_lines - linear polyline features (contacts, faults)
ArroyoSeco_poly - geologic unit polygons
ArroyoSeco_label - polygon labels (attributes)
ArroyoSeco_flat_locations - location of flattest relief in polygon (attribute)
ArroyoSeco_OSLsample - OSL and IRSL sample sites
ArroyoSeco_inset_map_boundary - boundary of inset Arroyo Seco Map (contact)
FEATURE ATTRIBUTES:
<ArroyoSeco_lines>
field - name, Name of the faults. Contacts and a few faults are "unnamed".
Name
Paloma Fault
Arroyo Seco
Bear Canyon
Coleman
Junipero Serra
Lucia
Reliz
Rinconada
unnamed
Vaqueros
Willow Creek
field - Source, Source for the named faults.
Source
Durham (1970)
Dibblee (2006a)
Dibblee (2006b)
Dibblee (2006c)
Dibblee (2006d)
Dibblee (2006e)
Dibblee (2007)
Seiders and others (1983)
Snetsinger (1962)
Tinsley (1975)
this publication
field - age, Age of the fault if known.
age
Late Quaternary
Pre-Quaternary
Quaternary undifferentiated
no data
field - description, Description of the contact or faults.
Description contact - certain
<ArroyoSeco_poly>
same fields as <ArroyoSeco_label>
<ArroyoSeco_label>
field - Map_unit, Geologic map unit name
field - description, Description of geologic map unit
field - terrace_number, Ordered sequence from oldest (1) to youngest (20) geologic unit. Latest Holocene eroded cut banks (cb) are 999. Bedrock units are greater than 20.
field - age, Geologic age
Map_unit description terrace_number age
Water waterbody 0
Qcb Cut bank 999 latest Holocene
Qfr2 Fluvial and minor eolian deposits 20 latest Holocene
Qfr1 Fluvial deposit 19 latest Holocene
Qfy2 Fluvial deposit 18 late Holocene
Qfy1 Fluvial deposit 17 late Holocene
Qfay Fluvial and alluvial deposits 16 middle to early Holocene
Qfai4 Fluvial and alluvial deposits 15 latest late Pleistocene
Qfai3 Fluvial and alluvial deposits 14 latest late Pleistocene
Qei Eolian deposits 13 latest late Pleistocene
Qfai2y Fluvial and alluvial deposits 12 latest late Pleistocene
Qfai2o Fluvial and alluvial deposits 11 latest late Pleistocene
Qfai1 Fluvial and alluvial deposits 10 early late Pleistocene
Qao Alluvial deposits 9 late middle Pleistocene
Qfo8 Fluvial deposits 8 middle to early Pleistocene
Qfo7 Fluvial deposits 7 middle to early Pleistocene
Qfo6 Fluvial deposits 6 middle to early Pleistocene
Qfo5 Fluvial deposits 5 middle to early Pleistocene
Qfo4 Fluvial deposits 4 middle to early Pleistocene
Qfo3 Fluvial deposits 3 middle to early Pleistocene
Qfo2 Fluvial deposits 2 middle to early Pleistocene
Qfo1 Fluvial deposits 1 middle to early Pleistocene
QTpr Paso Robles Formation 35 middle Pleistocene to Pliocene
Tsa Shallow near-shore marine 40 Pliocene
regressive sediments
Tpr Pancho Rico Formation 45 Pliocene to Miocene
Tms Tertiary marine sediments 50 Miocene to Paleocene
MzPzub Undifferentiated Basement 55 Mesozoic to Paleozoic
field - drainage_sys, The drainage system that the residual, erosional, or depositional surface is associated with. Bedrock units are not associated with specific drainage systems.
drainage_system
Arroyo Seco terrace
Arroyo Seco terrace (residual) on QTpr
Arroyo Seco terrace on QTpr
cut bank
paleoerosional surface
QTpr
QTpr
Reliz terrace
Reliz terrace (residual) on QTpr
Reliz terrace on QTpr
Salinas terrace
Salinas terrace (residual) on QTpr
Salinas terrace of Tms
Salinas terrace on QTpr
Tms
Tpr
Tsa
Tsa Reliz
Undifferentiated Basement
water
field - soil_name, Natural Resources Conservation Service, USDA soil classification
field - soil, Natural Resources Conservation Service, USDA abbreviation of soil name
field - soil_group, Simplified alluvial soil groups
field - Bt_hz_k, Thickness in cm of the Bt horizon with the maximum percentage of clay
field - MaxClay, Percent of clay in the maximally developed B horizon
field - landform, The landform that the soil is typically associated
soil_name soil_group Bt_hz_k MaxClay landform
Alo Aa 0 55 residual on sedimentary rocks
Arroyo Seco As, Av 0 0 alluvial fans, alluvial plains
Badland Ba 0 0 badland
Chamise Ca 48 55 terraces
Chualar Cb 53 25 alluvial fans, terraces
Cieneba Cc, Cd, Ce 0 18 residual on igneous and metamorphic rocks
Cropley Cn 0 60 alluvial fans, terraces
Diablo Dd 0 60 residual on sedimentary rocks
Dune land Df 0 0 sand dune
Elder Ea, Eb, Ec 0 18 alluvial fans, alluvial plains
Fluvents Fa 0 5 flood plains
Garey Gb, Gc 76 15 eolian sand dune
Gaviota Gd, Ge 0 18 residual on sedimentary rocks
Gazos Gf 0 27 residual on sedimentary rocks
Gloria Gh 41 60 alluvial fans, terraces
Gorgonio Gk 0 15 alluvial fans, terraces
Haire Ha 61 60 residual on sedimentary rocks
Linne La, Lb, Lc 0 35 residual on sedimentary rocks
Lockwood Ld, Le 102 35 alluvial fans, terraces
Lopez Lh 0 27 residual on shale
Los Osos Lm 28 50 residual on sedimentary rocks
McCoy Ma, Mb 46 35 residual on granitic rocks
Metz Me, Mf 0 35 alluvial fans, alluvial plains
Mocho Mn, Mo 0 35 alluvial fans, alluvial plains
Nacimiento Na 0 35 residual on sedimentary rocks
Pico Mg, Pf 0 35 alluvial fans, alluvial plains
Placentia Pn, Po 33 50 alluvial fans, terraces
Psamments Ps, Pr 0 10 flood plains
Rincon Ra 36 45 alluvial fans, terraces
Salinas Sb 0 35 alluvial fans, terraces
Santa Lucia Sf 0 35 residual on shale
Santa Lucia, Reliz,
Lopez complex Sg 0 30 hills, uplands
Shedd SmG 0 35 hills, uplands
Sheridan So 0 18 hills, uplands
Sur, Junipero
complex Ss 0 19 hills, uplands
Tujunga Tb 0 5 alluvial fans, alluvial plains
Vista Va, Vb 0 15 hills, uplands
Xerorthents Xb, Xd 0 35 cut bank
<ArroyoSeco_flat_locations>
field - Map_unit, Geologic map unit name that location falls within
field - soil, NRCS soil name that location falls within
field - FLAT_Y Northing coordinate of flattest spot in polygon
field - FLAT_X Easting coordinate of flattest spot in polygon
field - FLAT_Z Elevation in meters of flattest spot in polygon
<ArroyoSeco_OSLsample>
field - SampleID, Lab and field identification number
field - soil, Abbreviation of soil name sampled
field - Map_Unit, Geologic map unit name sampled
field - notes, Notes on field location
field - point_X - sample location, easting
field - point_Y - sample location, northing
field - Z - sample location, elevation (meters)
field - OSL_IRSL_Age, OSL or IRSL age of sample in years
Entity_and_Attribute_Detail_Citation: none
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, DFC
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: USA
Contact_Voice_Telephone: 1-888-ASK-USGS
Resource_Description: Scientific Investigations Map SIM 3260
Distribution_Liability:
This database, identified as SIM 3260, has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.
Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ArcGIS Geodatabase, ArcView Shapefile
Format_Version_Number: Arc 10.2
File_Decompression_Technique: GZIP compressed TAR file (Unix), ZIP archive (Windows)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: http://pubs.usgs.gov/sim/3260
Fees: none
Metadata_Reference_Information:
Metadata_Date: 03012013
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily M. Taylor
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing address
Address: Denver Federal Center
Address: MS 980
City: Denver
State_or_Province: Colorado
Postal_Code: 80225
Country: USA
Contact_Voice_Telephone: 303-236-8253
Contact_Facsimile_Telephone: 303-236-5349
Contact_Electronic_Mail_Address: emtaylor@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none
Metadata_Extensions:
Online_Linkage: http://www.esri.com/metadata/esriprof80.html
Profile_Name: ESRI Metadata Profile