WELLSITE: Bedrock Data from Western Cape Cod, Massachusetts

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Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 20030505

Title: WELLSITE: Bedrock Data from Western Cape Cod, Massachusetts

Edition: 1.0

Geospatial_Data_Presentation_Form: vector digital data

Series_Information:

Publication_Information:

Publication_Place: Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <http://pubs.usgs.gov/openfile/2003/of03-221/data/welldata/wellsite.zip>

Larger_Work_Citation:

Citation_Information:

Originator: B.W. Hallett

Originator: V.F. Paskevich

Originator: L.J. Poppe

Originator: S.G. Brand

Originator: D.S. Blackwood

Publication_Date: 2003

Title:

A Pictorial Survey of the Bedrock Beneath Western Cape Cod, Massachusetts

Edition: 1.0

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 03-221

Publication_Information:

Publication_Place: Woods Hole Field Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Description:

Abstract:

Cores collected from recent drilling in western Cape Cod, Massachusetts provide insight into the topography and petrology of the underlying bedrock. Cores from 64 drill sites spread over a ~140 km2 study area produced samples of granitoids (31), orthogneisses (20), basalts/diabases (4), amphibolites (3), felsic mylonites (2), and dolomitic rock (2).

Granitoid composition ranges from granite to tonalite and quartz diorite, but it is dominated by two-feldspar granites. Hydrothermal alteration is common in nearly all cores as evidenced by the secondary growth of chlorite and epidote. Granitoids resemble rocks of the Dedham and Fall River plutons (Wones and Goldsmith, 1991). Gneisses generally contain the mineral assemblage K-feldspar+plagioclase+quartz±biotite± chlorite±muscovite±sphene±epidote+oxides. Amphibolites contain the assemblage hornblende+plagioclase+quartz+biotite+epidote±chlorite±sphene±K-feldspar±sericite+ oxides. Peak metamorphic grade based on mineral assemblages is estimated at lower amphibolite facies. X-ray powder diffraction of unmetamorphosed dolomitic cores shows presence of layered silicates (clays), plagioclase, and possible magnesite.

Contours of the bedrock surface show locally irregular topography suggesting erosion by glacial scour. Lithologic distribution mapping suggests a possible continuation of the New Bedford gneissic terrane that outcrops 25 km to the west. Dolomitic rocks may represent a lithified fault gauge material at the eastern edge of the gneissic zone. Basalts/diabases are interpreted to be post-metamorphic dikes associated with Mesozoic rifting.

Purpose:

The purpose of this data layer is to provide those interested in the composition and character of the bedrock beneath western Cape Cod with the ability to examine the well logs and sample descriptions in a geographic context.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2003

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.615932

East_Bounding_Coordinate: -70.501960

North_Bounding_Coordinate: 41.667870

South_Bounding_Coordinate: 41.611070

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: USGS

Theme_Keyword: Woods Hole Field Center

Theme_Keyword: CH2M Hill

Theme_Keyword: bedrock

Theme_Keyword: wells

Theme_Keyword: lithology

Theme_Keyword: Massachusetts Military Reservation

Theme_Keyword: Installation Restoration Program

Theme_Keyword: Jacobs Engineering

Theme_Keyword: MMR

Theme_Keyword: IRP

Theme_Keyword: granite

Theme_Keyword: granodiorite

Theme_Keyword: basalt

Theme_Keyword: quartz diorite

Theme_Keyword: quartz monzonite

Theme_Keyword: tonalite

Theme_Keyword: orthogneiss

Theme_Keyword: granitoid

Theme_Keyword: mylonite

Theme_Keyword: dolostone

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: Cape Cod

Place_Keyword: Massachusetts

Place_Keyword: U.S. East Coast

Place_Keyword: New England

Place_Keyword: southeastern New England

Place_Keyword: Falmouth

Place_Keyword: Mashpee

Place_Keyword: Sandwich

Access_Constraints: None

Use_Constraints: The U.S.GS must be referenced as the originator of this data set.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Lawrence J. Poppe

Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: USGS

Address: 384 Woods Hole Road

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1598

Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2314

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: lpoppe@usgs.gov

Data_Set_Credit:

Jacobs Engineering for drilling the wells, S. Brand of CH2M Hill and the Air Force Center for Environmental Excellence for providing access to the well samples and logs, B. Hallett for the petrographic descriptions, and L. Poppe for creating the ArcView shapefile.

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.1 (Build 2600) ; ESRI ArcCatalog 8.2.0.700

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: All attributes were checked in a consistent manner.

Logical_Consistency_Report:

No additional checks for topological consistency were performed on this data.

Completeness_Report:

This data set contains a subset of the wells drilled on the Massachusetts Military Reservation and a subset of the attributes available in the database from this drilling program maintained as part of the Installation Restoration Program there. This data set contains station locations, navigation, well information, and lithologies of the bedrock for 64 locations, 57 of which have associated images.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Each wellsite was surveyed; horizontal accuracy to less than 1 meter.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Each wellsite was surveyed; vertical accuracy to less than 1 meter.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Publication_Date: Unpublished Material

Type_of_Source_Media: disc

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20030505

Source_Currentness_Reference: ground condition

Process_Step:

Process_Description:

The well identifiers, navigation, and bedrock descriptions were compiled in Microsoft Excel and saved as an ASCII text file. The ASCII text file was imported to an ArcView table. The table was later converted to an Event Theme in ArcView and saved as the final shapefile.

Source_Used_Citation_Abbreviation: wellsite.txt

Process_Date: 20030505

Source_Produced_Citation_Abbreviation: wellsite.shp

Source_Produced_Citation_Abbreviation: wellsite.dbf

Source_Produced_Citation_Abbreviation: wellsite.shx

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Lawrence J. Poppe

Contact_Organization: U.S. Geological Survey

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: USGS

Address: 384 Woods Hole Road

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543-1543

Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2314

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: lpoppe@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Entity point

Point_and_Vector_Object_Count: 64

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00001

Longitude_Resolution: 0.000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1927

Ellipsoid_Name: Clarke 1866

Semi-major_Axis: 6378206.400000

Denominator_of_Flattening_Ratio: 294.978698

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: National Geodetic Vertical Datum of 1929

Altitude_Resolution: 0.01

Altitude_Distance_Units: m

Depth_System_Definition:

Depth_Datum_Name: Mean sea level

Depth_Resolution: 0.01

Depth_Distance_Units: meters

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: wellsite

Entity_Type_Definition: Shapefile Attribute Table

Entity_Type_Definition_Source: ESRI

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: LOCATION

Attribute_Definition: Names assigned to designate the wellsite location.

Attribute_Definition_Source: CH2M Hill Scientist

Attribute_Domain_Values:

Unrepresentable_Domain: Name of wellsite location (characters and numerics)

Attribute:

Attribute_Label: LATITUDE

Attribute_Definition: Latitude coordinate of well location

Attribute_Definition_Source: CH2M Hill scientist

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 41.61107

Range_Domain_Maximum: 41.66787

Attribute_Units_of_Measure: decimal degrees

Attribute_Measurement_Resolution: 0.00001

Attribute:

Attribute_Label: LONGITUDE

Attribute_Definition: Longitude coordinate of well location

Attribute_Definition_Source: CH2M Hill Scientist

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -70.615932

Range_Domain_Maximum: -70.501960

Attribute_Units_of_Measure: decimal degrees

Attribute_Measurement_Resolution: 0.000001

Attribute:

Attribute_Label: ELEVATION

Attribute_Definition: Elevation of wellsite (ground level) above mean sea level

Attribute_Definition_Source: CH2M Hill Scientist

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 12.36

Range_Domain_Maximum: 72.18

Attribute_Units_of_Measure: meters

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: BEDROCK_EL

Attribute_Definition:

Elevation (depth) of the upper bedrock surface below mean sea level

Attribute_Definition_Source: CH2M Hill Scientist

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -81.65

Range_Domain_Maximum: -37.03

Attribute_Units_of_Measure: meters

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: TOC_ELEV

Attribute_Definition: Elevation of the top of casing above mean sea level.

Attribute_Definition_Source: CH2M Hill Scientist

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 13.13

Range_Domain_Maximum: 72.94

Attribute_Units_of_Measure: meters

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: T_DEPTH

Attribute_Definition: Total thickness of strata penetrated by the well

Attribute_Definition_Source: CH2M Hill Scientist

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 71.93

Range_Domain_Maximum: 115.22

Attribute_Units_of_Measure: meters

Attribute_Measurement_Resolution: 0.01

Attribute:

Attribute_Label: CORE_DATE

Attribute_Definition: Date well was completed

Attribute_Definition_Source: CH2M Hill

Attribute_Domain_Values:

Unrepresentable_Domain: Dates in yy/mm/dd notation

Attribute:

Attribute_Label: BROCK_LITH

Attribute_Definition: Brief description of the rock type

Attribute_Definition_Source: USGS Scientist

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Granite

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Granodiorite

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Basalt

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Quartz Diorite

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Quartz Monzonite

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Orthogneiss

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Diabase

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Amphibolite

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Dolostone

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Dolomitic Mudrock

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Tonalite

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Granitoid

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Felsic Mylonite

Enumerated_Domain_Value_Definition_Source: Scientist

Enumerated_Domain:

Enumerated_Domain_Value: Syenitic Mylonite

Enumerated_Domain_Value_Definition_Source: Scientist

Attribute:

Attribute_Label: IMAGE

Attribute_Definition:

Name of the picture of the rock in .jpg format, and the path to that image on the CD-ROM

Attribute_Definition_Source: Scientist

Attribute_Domain_Values:

Unrepresentable_Domain: Photo names and paths

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Person: Lawrence J. Poppe

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: USGS

Address: 384 Woods Hole Road

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543

Country: USA

Contact_Voice_Telephone: 508-457-2314

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: lpoppe@usgs.gov

Resource_Description:

Logs and descriptions of the bedrock for wells completed on the Upper Cape, Massachusetts.

Distribution_Liability:

Although this data set has been used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ArcView shapefile

Format_Version_Number: 3.2

Format_Specification: ESRI point shapefile

Format_Information_Content:

Five Files (wellsite.shp, wellsite.dbf, wellsite.shx, wellsite.sbn, wellsite.sbx)

File_Decompression_Technique: no compression applied

Transfer_Size: 0.135

Fees: None

Technical_Prerequisites:

The data is available in ArcView format. The user must have ArcView 3.0 or greater to read and process the data file. In lieu of ArcView, the user may utilize another GIS application package capable of importing the data

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2003

Metadata_Reference_Information:

Metadata_Date: 20030725

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Person: Lawrence J. Poppe

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical address

Address: USGS

Address: 384 Woods Hole Road

City: Woods Hole

State_or_Province: Massachusetts

Postal_Code: 02543-1598

Country: USA

Contact_Voice_Telephone: (508) 548-8700 x2314

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: lpoppe@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