COVERAGE NEH_GEO

Available as - [Outline] - [SGML]

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 19930000
Publication_Time: Unknown
Title: COVERAGE NEH_GEO
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: Menlo Park,CA
Publisher: U.S. Geological Survey
Online_Linkage: <http://www.orst.edu/dept/tbaynep/active.html>
Description:
Abstract:
"The Tillamook map area consists of six 15' quadrangles extending from the Oregon coast eastward across the mountainous Eocene volcanic terrane of the northern Coast Range (Figure 1). The region is informally known as the Tillamook Highlands and is characterized by high rainfall, dense vegetation, and deeply weathered surface outcrops. The terrain is rugged, ranging from sea level to 3700Õ(1100m), but logging roads and rivers provide good access and bedrock exposure. Major forest fires in the 1930s and 1940s created spectacular exposures of the Tillamook Volcanics in the Highlands, but succesful reforestation has left only the most rugged peaks still exposed.

The Tillamook map area crosses a broad, northeast-plunging structural arch in Tertiary volcanic and sedimentary strata that form the northern Oregon Coast Range (Figure 1). The core of the uplift consists of Eocene basalt and interbedded marine strata which were previously correlated with the Siletz River Volcanics of the central Oregon Coast Range (Wells and Peck, 1961). In this study, the Eocene volcanics have been divided into five units, and a distinction is made between the lower Eocene Siletz River Volcanics and the overlying Tillamook Volcanics of late middle Eocene age. Marine mudstone and sandstone are interbedded with all of the volcanic units and comprise most of the late Eocene to Miocene stratigraphic section which forms the flanks of the Coast Range uplift. Continental shelf and slope sequences predominate in the basins flanking the Coast Range uplift."

Purpose:
A major goal of our investigation was to establish the basic stratigraphy and structure necessary to guide energy, mineral, hydrologic, and geologic hazard investigations in northwest Oregon. Also of interest in the Tillamook Highlands are local areas of mineralization that are concentrated in previously unrecognized silicic flows and intrusions of the Tillamook Volcanics (see map). Another important goal of this study was to determine the tectonic environment of the Eocene Tillamook Volcanics, which comprise a large part of the northern Oregon Coast Range.
Supplemental_Information:
scale 1:62500 "double-quoted" portions of this metadata report was taken from :
Geologic Map of the Tillamook Highlands,
 Northwest Oregon Coast Range
(Tillamook, Nehalem, Enright, Timber, Fairdale, and Blaine
15 minute Quadrangles)
by
Ray E. Wells1, Parke D. Snavely, Jr1, N. S. MacLeod2,
Michael M. Kelly3, and Michael J. Parker4
Open File Report 94-21
1994
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: Unknown
Currentness_Reference: Publication Date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None Planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.76528711
East_Bounding_Coordinate: -123.48829988
North_Bounding_Coordinate: 45.50651706
South_Bounding_Coordinate: 45.24311545
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: geology
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: North America
Place_Keyword: United States of America
Place_Keyword: OR
Place_Keyword: Oregon
Access_Constraints: none
Use_Constraints: see Distribution_Liability
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ray Wells
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: Mailing and Physical Address
Address: 345 Middlefield Rd, MS 975
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: (415)329-4933
Contact_Electronic_Mail_Address: "rwells@usgs.gov"> rwells@usgs.gov
Data_Set_Credit:
" Mike Gallagher and Cheryl Hummon provided able assistance in the field. We appreciate the comments of Angela Jayko on an earlier version of the map. Tracey Felger and Johanna Fenton compiled and edited the entire map in ARCINFO. We thank Allison Asbjornsen, Leo and Shannon Brosseau, Jim and Mary Winter and the residents of Tillamook, Netarts, and Oceanside for sharing their local knowledge and hospitality. "
Native_Data_Set_Environment:
Windows_NT, 4.0, Intel ARC/INFO version 7.2.1


Data_Quality_Information:
Logical_Consistency_Report: Polygon and chain-node topology present.
Completeness_Report: complete
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
"Uses of this digital geologic map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was compiled from 7.5' maps at a scale of 1:48,000 means that higher resolution information is generally not present in the dataset, although it may be useful locally at 1:24,000 in areas of closely spaced field observations. Plotting at scales larger than 1:48,000 generally will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data. Note that although the base map layers also have a resolution of 1:48,000, discrepancies between geologic contacts and topography may occur. The base map layers are provided for reference only. "
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Harry Casler,NMD Western Mapping Center
Publication_Date: 19910000
Publication_Time: Unknown
Title: 1991 Geologic Map of Oregon
Geospatial_Data_Presentation_Form: map
Publication_Information:
Publication_Place: unknown
Publisher: U.S.G.S.
Source_Scale_Denominator: 62500
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: Unknown
Source_Currentness_Reference: Publication Date
Source_Citation_Abbreviation: a
Source_Contribution: all
Process_Step:
Process_Description:
"The geologic map information from twenty four 1:24,000 scale field maps was reduced and compiled at 1:48,000 scale on six stable originals created from the 7.5' bases. The geology was digitized from the six 1:48,000 map sheets, each of which represent a quadrangle (Tillamook, Nehalem, Enright, Timber, Fairdale, and Blaine) in the discontinued 15' map series. The author manuscripts (ink on mylar) were scanned using a Tektronix 4991 monochrome scanner with a resolution of 304.8 dots per inch. The scanned images were vectorized and transformed from scanner coordinates to projection coordinates using digital tics at quadrangle corners. The scanned lines were edited interactively using ALACARTE, unit boundaries were tagged as a contact or fault as appropriate, and scanning artifacts visible at 1:24,000 were removed. "
Process_Date: Unknown
Process_Step:
Process_Description:
last draft of metadata created by Administrator using FGDCMETA.AML ver. 1.2 05/14/98 on ARC/INFO data set \sean\metadata\geolog\bla_geo
Process_Date: 19981211
Process_Step:
Process_Description:
"Base Map layers were prepared from scale-stable printing negatives at 1:48,000 scale, of the U.S. Geological Survey Tillamook (1955 edition), Nehalem (1955 edition), Enright (1955 edition), Timber (1955 edition), Fairdale (1955 edition), and Blaine (1955 edition) 15' topographic maps. This old base was used because there were no funds for digitizing the 24 7.5' bases and because a base derived from 7.5' quadrangles was unsuitable for plotting images of the entire map area. Scanned and vectorized images were transformed from scanner coordinates to projection coordinates using digital tics at map corners. Scanning artifacts are common in the base map coverages, and they were not removed. The base is intended for reference only; no information other than location is attached to the lines. "
Process_Date: Unknown


Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 593
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 2000
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 594


Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 43
Standard_Parallel: 45.5
Longitude_of_Central_Meridian: -120.5
Latitude_of_Projection_Origin: 41.75
False_Easting: 400000.00000
False_Northing: 0.00000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 3.318016767501
Ordinate_Resolution: 3.318016767501
Planar_Distance_Units: 3.2808400000
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS1980
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98


Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: neh_geo.PAT
Entity_Type_Definition: -poly attribute table
Entity_Type_Definition_Source: computer generated

Attribute:
Attribute_Label: PTYPE
Attribute_Definition: 'polygon unit code'
Attribute_Definition_Source: 'Ray Wells, U.S.G.S.'
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Qb
Enumerated_Domain_Value_Definition: Beach and dune deposits
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Qf
Enumerated_Domain_Value_Definition: Fluvial and estuarine deposits
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Qls
Enumerated_Domain_Value_Definition: Landslide deposits
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Qls?
Enumerated_Domain_Value_Definition: as Qls, unconfirmed in field
Enumerated_Domain_Value_Definition_Source: 'Bruce Follansbee, TBNEP'
Enumerated_Domain:
Enumerated_Domain_Value: Qt
Enumerated_Domain_Value_Definition: Older fluvial and estuarine deposits
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Taa
Enumerated_Domain_Value_Definition: Angora Peak member of Niem and Niem
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tac
Enumerated_Domain_Value_Definition: Cannon Beach member of Niem and Niem
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tal
Enumerated_Domain_Value_Definition: Alesa Formation
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tals
Enumerated_Domain_Value_Definition: Feldspathic sandstone
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tba
Enumerated_Domain_Value_Definition: Aphyric basalt
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tbl
Enumerated_Domain_Value_Definition: Lower porphyritic basalt flows
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tbpl
Enumerated_Domain_Value_Definition: Lower plagioclase-porphyritic basalt
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tbr
Enumerated_Domain_Value_Definition: Submarine basalt tuff and breccia
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tbs
Enumerated_Domain_Value_Definition: Basaltic sandstone at Roy Creek
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tbu
Enumerated_Domain_Value_Definition: Upper porphyritic basalt flows
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Teib
Enumerated_Domain_Value_Definition: Basalt sills
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tgr
Enumerated_Domain_Value_Definition: Grande Ronde Basalt
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tifs
Enumerated_Domain_Value_Definition: Wanapum Basalt
Enumerated_Domain_Value_Definition_Source: 'U.S.G.S. Open File Report 94-21, Wells, et.al.'
Enumerated_Domain:
Enumerated_Domain_Value: Tifs?
Enumerated_Domain_Value_Definition: as Tifs, unconfirmed in field
Enumerated_Domain_Value_Definition_Source: 'Bruce Follansbee, TBNEP'
Enumerated_Domain:
Enumerated_Domain_Value: Tigr
Enumerated_Domain_Value_Definition: Grande Ronde Basalt
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tn
Enumerated_Domain_Value_Definition: Nestucca Formation
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tpb
Enumerated_Domain_Value_Definition: Submarine basalt
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tpb?
Enumerated_Domain_Value_Definition: as Tpb, unconfirmed
Enumerated_Domain_Value_Definition_Source: 'Bruce Follansbee, TBNEP'
Enumerated_Domain:
Enumerated_Domain_Value: Tsf
Enumerated_Domain_Value_Definition: Subaerial dacite rhyodacite and rhyolite
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tsg
Enumerated_Domain_Value_Definition: Sandstone of Garibaldi
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: Tts
Enumerated_Domain_Value_Definition: Epiclastic silicic tuff and tuff breccia
Enumerated_Domain_Value_Definition_Source: 'K.M. Busse, Oregon State University'
Enumerated_Domain:
Enumerated_Domain_Value: water
Enumerated_Domain_Value_Definition: unknown
Enumerated_Domain_Value_Definition_Source: n/a
Detailed_Description:
Entity_Type:
Entity_Type_Label: neh_geo.AAT
Entity_Type_Definition: -line attribute table
Entity_Type_Definition_Source: computer generated

Attribute:
Attribute_Label: LTYPE
Attribute_Definition: 'line type'
Attribute_Definition_Source: 'U.S.G.S. Open File Report 94-21, Wells, et.al.'
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: see Overview_Description
Enumerated_Domain_Value_Definition: see Overview_Description
Enumerated_Domain_Value_Definition_Source: see Overview_Description
Detailed_Description:
Entity_Type:
Entity_Type_Label: neh_geo.NAT
Entity_Type_Definition: -node attribute table
Entity_Type_Definition_Source: computer generated

Overview_Description:
Entity_and_Attribute_Overview:

NEH_GEO.PAT

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC
    1  AREA                   4    12     F      3
    5  PERIMETER              4    12     F      3
    9  NEH_GEO#               4     5     B      -
   13  NEH_GEO-ID             4     5     B      -
   17  PTYPE                 35    35     C      -


NEH_GEO.AAT

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC
    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  NEH_GEO#               4     5     B      -
   25  NEH_GEO-ID             4     5     B      -
   29  LTYPE                 35    35     C      -


NEH_GEO.NAT

COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC
    1  ARC#                   4     5     B      -
    5  NEH_GEO#               4     5     B      -
    9  NEH_GEO-ID             4     5     B      -
   13  NODE_ID                4     5     B      -


LTYPE
'contact, approx. located'
'contact, certain'
'contact, concealed'
'contact, concealed, queried'
'contact, inferred, queried'
'dike, Tib'
'dike, Tis'
'fault, approx. located'
'fault, certain'
'fault, concealed'
'fault, concealed, queried'
'fault, inferred, queried'
'map boundary, certain'
'thrust fault, approx. located'
'thrust fault, certain'
'water boundary, certain'
Entity_and_Attribute_Detail_Citation: not available


Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Tillamook Coastal Watershed Resource Center
Contact_Position: G.I.S. Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 6385 Tillamook Ave.
City: Bay City
State_or_Province: OR
Postal_Code: 97107
Country: USA
Contact_Voice_Telephone: (503)377-4000
Contact_Instructions: Contact via email,mail,fax or telephone
Contact_Electronic_Mail_Address: requests@tcwrc.tbcc.cc.or.us

Distribution_Liability:
no warranty expressed or implied is made regarding the accuracy 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. This disclaimer applies both to individual use of the data and aggregate use with other data. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The Tillamook Coastal Watershed Resource Center shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Metadata_Reference_Information:
Metadata_Date: 19981211
Metadata_Review_Date:
Metadata_Future_Review_Date:
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Tillamook Coastal Watershed Resource Center
Contact_Person: Ann Stark
Contact_Position: GIS Coordinator
Contact_Address:
Address_Type: mailing and physical address
Address: 6385 Tillamook Ave.
City: Bay City
State_or_Province: OR
Postal_Code: 97107
Country: USA
Contact_Voice_Telephone: (503)377-4000
Contact_Facsimile_Telephone: (503)377-4010
Contact_Electronic_Mail_Address: requests@tcwrc.tbcc.cc.or.us
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: none
Metadata_Use_Constraints: none

Generated by mp version 2.4.10 on Wed Jul 28 15:00:23 1999