Sediment Magnetic and Paleomagnetic Data from Buck Lake, Oregon

Metadata also available as - [Questions & Answers] - [Parseable text] - [XML]

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Joseph G. Rosenbaum
Originator: Richard L. Reynolds
Originator: Priscilla L. Fitzmaurice
Originator: John Drexler
Originator: Gene C. Whitney
Originator: David. P. Adam
Title: Sediment Magnetic and Paleomagnetic Data from Buck Lake, Oregon
Publication_Date: 1995
Edition: First
Geospatial_Data_Presentation_Form: model
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 95-673
Publication_Information:
Publication_Place: Denver Colorado
Publisher: U.S. Geological Survey
Online_Linkage: http://pubs.usgs.gov/of/1995/of95-673/
Description:
Abstract:
Sediment magnetic and paleomagnetic studies were conducted on a core from Buck Lake, Klamath County, Oregon, that was collected as part of an investigation into the Quaternary climate history of the western United States. This report documents the methods used to obtain paleomagnetic directions, magnetic properties, and ancillary data, and presents these data in tabular form.
Purpose:
This report documents the methods used to obtain paleomagnetic directions, magnetic properties, and ancillary data, and presents these data in tabular form.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1995
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.175
East_Bounding_Coordinate: -122.175
North_Bounding_Coordinate: 42.262
South_Bounding_Coordinate: 42.262
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: paleomagnetic analysis
Theme_Keyword: magnetic susceptibility
Theme_Keyword: remanent magnetism
Theme_Keyword: unconsolidated deposits
Theme_Keyword: geospatial datasets
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: Paleomagnetics
Theme_Keyword: Lacustrine
Theme_Keyword: Lake
Theme_Keyword: Sediments
Theme_Keyword: Core
Theme_Keyword: Magnetic properties
Theme_Keyword: Grain size
Theme_Keyword: Demagnetization
Theme_Keyword: Declination
Theme_Keyword: Inclination
Theme_Keyword: Magnetic susceptibility
Theme_Keyword: Natural remanent magnetization
Theme_Keyword: Anhysteric remanent magnetization
Theme_Keyword: Organic carbon
Theme_Keyword: Coercivity of remanence
Theme_Keyword: X-ray fluorescence
Theme_Keyword: Elemental abundance
Theme:
Theme_Keyword_Thesaurus: National Geologic Map Database Catalog themes, augmented
Theme_Keyword: 1200 - Geophysics
Theme_Keyword: 1201 - Magnetics
Theme_Keyword: 1600 - Geochronology
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4
Place_Keyword: f41035 = Klamath
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: United States of America
Place_Keyword: Western U.S.
Place_Keyword: Oregon
Place_Keyword: Klamath County
Place_Keyword: Buck Lake
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: Quaternary
Temporal_Keyword: Recent
Access_Constraints: none
Use_Constraints: none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Sampling:
Paleomagnetic samples were collected in the form of oriented cubes. Orientation was maintained with respect to the core axis. Azimuthal orientation was not maintained.
Material collected from around each paleomagnetic specimen was vialed. The depth interval of material contained in each vial corresponds closely (but not exactly) to the interval sampled by a paleomagnetic specimen.
Paleomagnetic directions:
Progressive demagnetization occured in at least five steps and many specimens were demagnetized at additional levels.
Characteristic directions of magnetization were calculated by fitting lines to demagnetization data which visually appear to define coherent components when displayed on orthogonal vector diagrams.
Hysteresis properties:
For each hysteresis loop generated, high field (or paramagnetic) magnetic susceptibility was determined by fitting lines to a portion of the data for inductions above about 0.9T.
Logical_Consistency_Report:
Six tables record information from the various studies performed on core material. All studies were not completed on all samples. Two different sample entities were collected from core material, "Vials" and "Sample boxes". "Vials" and "Sample boxes" were labeled as follows:
Paleomagnetic specimens, 3.2 cm3 in volume, were taken in plastic boxes. Each paleomagnetic specimen was given a unique box number and the depth interval (with respect to the top of the core segment) covered by each box was recorded. Subsequently each specimen was assigned a second unique number, the sample number. Core material removed from around each paleomagnetic specimen was placed in one or more numbered vials. The depth interval contained in each vial corresponds closely (but not exactly) to the interval sampled by a paleomagnetic specimen. These vials were later assigned sample numbers. Material in these vials was used to determine grain size, and elemental concentrations.
"Depth in hole (meters)" is consistantly used throughout the data tables. Other entities are used as follows.
+-------------------+-----------------------------------------------------+
|                   |  Table    Table    Table    Table    Table    Table |
|                   |    1        2        3        4        5        6   |
+-------------------+-----------------------------------------------------+
| Sample number     |    X                                                |
|                   |                                                     |
| Sample box number |X some       X        X        X        X        X   |
|                   |                                                     |
| Vial number       |X some                                  X        X   |
+-------------------+-----------------------------------------------------+
Completeness_Report:

132 samples, labeled "Vial" samples were collected for analysis of grain size and elemental concentrations.
"Grain size percent > 3.2 microns" data were recorded for 21 samples.
Elemental abundance data were recorded for 110 samples
Carbon Abundance data were determined for 51 samples.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The horizontal coordinates of the Buck Lake core site were determined from the position of the site on the Lake of the Woods, Oregon 7.5 minute topographic quadrangle map. The accuracy of the measurements are estimated to be + or - 0.005 degrees latitude and + or - 0.005 degrees longitude.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
The altitude of the core sight was determined from the Lake of the Woods, Oregon 7.5 minute topographic quadrangle map. The contour interval of the map is 5 feet. The accuracy of the measurement is estimated at + or - 5 feet.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Adam, D.P
Publication_Date: 1993
Title:
Field core processing techniques used by U.S.G.S. 1991 drilling operations in the Upper Klamath basin, Oregon and California: U.S. Geological Survey Open-file Report No. 93-20
Edition: First
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 93-20
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19930101
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Adam, (1993)
Source_Contribution: Lithology
Source_Information:
Source_Citation:
Citation_Information:
Originator: Adam, D.P.
Originator: Rieck, H.J.
Originator: McGann, M.L.
Originator: Schiller, K.
Originator: Sarna-Wojcicki, A.M.
Publication_Date: 1994
Title:
Lithologic description of sediment cores from Buck Lake, Klamath County, Oregon: U.S. Geological Survey Open-file Report No. 94-12, 48 p.
Edition: First
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 94-12
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: Quaternary
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Adam and others (1994)
Source_Contribution: site description, drilling methods, lithology of sediments
Source_Information:
Source_Citation:
Citation_Information:
Originator: Rosenbaum, J.G
Originator: Reynolds, R.L.
Originator: Fitzmaurice, P.
Originator: Adam, D.P.
Originator: Sarna-Wojcicki, A.M.
Originator: Kerwin, M.W.
Publication_Date: 1994
Title:
Covariance of magnetic and pollen records from Quaternary sediment, Buck Lake and Caledonia Marsh, southern Oregon: Proceedings of the VIIth International Symposium on the Observation of the Continental Crust Through Drilling.
Edition: First
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: Quaternary
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Rosenbaum and others (1994)
Source_Contribution:
Covariation of magnetic properties of sediments and climate change as interpreted from the pollen record.
Process_Step:
Process_Description:
Sampling
Paleomagnetic specimens, 3.2 cm3 in volume, were taken in plastic boxes. Pedestals were cut in the core, boxes were placed over the pedestals, and the sediment in the boxes was then cut from the core and the boxes were sealed. Orientation was maintained with respect to the core axis but the specimens were not azimuthally oriented. Each paleomagnetic specimen was given a unique box number and the depth interval (with respect to the top of the core segment) covered by each box was recorded. Subsequently each specimen was assigned a second unique number, the sample number. These boxed samples were used for measurements of magnetic susceptibility, paleomagnetic directions and magnitudes, laboratory induced magnetizations, and hysteresis properties.
Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Process_Step:
Process_Description:
Paleomagnetic Directions
Directions and magnitudes of natural remanent magnetization and of magnetization after alternating-field demagnetization were determined with a cryogenic magnetometer (sensitivity better than 10-5 A/m), a low-speed ( 5 Hz) spinner magnetometer (sensitivity 10-3 A/m), or a high-speed (90 Hz) spinner magnetometer (sensitivity better than 10-5 A/m). Each specimen was subjected to progressive alternating-field demagnetization to at least 60 mT. Progressive demagnetization occurred in at least five steps (peak inductions of 10, 20, 30, 40 and 60 mT) and many specimens were demagnetized at additional levels. Characteristic directions of magnetization were calculated by fitting lines to demagnetization data ( Kirschvink, 1980) which visually appeared to define coherent components when displayed on orthogonal vector diagrams.
Process_Date: 19930701
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Process_Step:
Process_Description:
Magnetic Susceptibility
A susceptometer (sensitivity better than 10-5 volume SI), operating at about 600 Hz or 6000 Hz, was used to measure low frequency (MSLF) and high-frequency (MSHF) magnetic susceptibilities. The
Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Process_Step:
Process_Description:
Laboratory Induced Magnetizations
A low speed-spinner magnetometer or a high-speed spinner magnetometer was used to measure anhysteretic remanent magnetization (ARM) and isothermal remanent magnetization (IRM). Following AF demagnetization, ARM was imparted to each specimen in a alternating induction of 100 mT and DC bias of 0.1 mT. Subsequently, an impulse magnetizer was used to impart IRMs. First specimens were given an IRM in an induction of 1.2 T (IRM1.2), and then they were given an oppositely directed IRM in an induction of 0.3 T (IRM-0.3). The "hard"
Process_Date: Unknown
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Process_Step:
Process_Description:
Hysteresis Properties
Hysteresis loops were generated for a subset of the paleomagnetic specimens using a vibrating sample magnetometer at the Institute for Rock Magnetism at the University of Minnesota. The maximum induction used was about 1.4 T. For each loop, high field (or paramagnetic) magnetic susceptibility was determined by fitting lines to a portion of the data for inductions above about 0.9 T. The induced magnetization due to this paramagnetic susceptibility was subtracted from the observed magnetizations prior to calculation of hysteresis properties.
Process_Date: 19930701
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Process_Step:
Process_Description:
Curie Temperatures
Curie temperatures were determined for magnetic minerals separated from bulk sediment that had been placed in bags during sampling. The separations were done by dispersing the sediment in water (with a small amount of surfactant) and pumping the resulting slurry past a magnet using a technique similar to that described by Petersen and others (1986). Magnetization, in an induction of 0.3 T or greater, was measured as a function of temperature using a sensitive balance similar to that described by Larson and others (1975).
Process_Date: 19930701
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Process_Step:
Process_Description:
Grain Size Analyses
Bulk sediment grain sizes (between 0.2 and 50 microns) were obtained for sediment in 21 vials using an automated particle-size analyzer. These results are summarized here as the percentage of sediment greater than 3.2 microns in size.
Process_Date: 19930701
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Process_Step:
Process_Description:
Elemental Abundances
Sediment from vials was prepared for energy-dispersive X-ray fluorescence analysis by thorough drying and subsequent pulverization in a shatter box. Analyses were made at the Department of Geological Sciences, University of Colorado. Analyses were made for Ba, Cr, Cu, Fe, La, Mn, Ni, Rb, Ti, V, Zn and Zr. In addition, concentrations of total carbon and carbonate carbon were determined by coulometry (Engleman and others, 1985). Organic carbon content was determined by taking the difference between total carbon and carbonate carbon.
Process_Date: 19930701
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Joseph G. Rosenbaum
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing address
Address: Box 25046, Denver Federal Center, MS 980
Address: DFC Bldg. 025, Room 1983B
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1304
Contact_Electronic_Mail_Address: jrosenbaum@usgs.gov
Process_Step:
Process_Description: Creation of original metadata record
Process_Date: 20130506
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kevin M. Foley
Contact_Organization: U.S. Geological Survey
Contact_Position: Physical Scientist
Contact_Address:
Address_Type: mailing address
Address: U.S. Geological Survey
Address: 12201 Sunrise Valley Drive Mail Stop 918
City: Reston
State_or_Province: Virginia
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: (703) 648-5285
Contact_Facsimile_Telephone: (703) 648-6560
Contact_Electronic_Mail_Address: kfoley@usgs.gov
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.05
Longitude_Resolution: 0.05
Geographic_Coordinate_Units: Decimal degrees
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Resolution: 5
Altitude_Distance_Units: feet
Altitude_Encoding_Method: Attribute values
Altitude_Datum_Name: North American Vertical Datum of 1988
Depth_System_Definition:
Depth_Datum_Name: Local surface
Depth_Resolution: .01
Depth_Distance_Units: meters
Depth_Encoding_Method: Attribute values
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:

Sample Number: A unique number assigned to a sample regardless ot sample type
Slug number: Core segment identification
Depth to top of slug (meters)
Depth interval relative to top of slug (cm)
Depth in hole (meters)
Grain Size Percent > 3.2 um
Declination (deg.) Linear fit
Inclination (deg.) Linear fit
NRM A/m
Magnetization removed in demagnetization interval A/m
Demagnetization interval used for linear fit (mT)
No. Pts. used in linear fit
Error Angle
Subjective quality of demagnetization path (A=best C=worst)
MS vol-SI: (low freq.) Magnetic susceptibility measured at about 600 Hz
FD of MS %: frequency of dependence of magnetic susceptibility
NRM A/m: magnitude of natural remanent magnetization
ARM A/m: magnitude of anhysteretic remanent magnetization
IRM 1.2T A/m: Isothermal remanent magnetization acquired in an induction of 1.2T
IRM -0.3T A/m: Isothermal remanent magnetization after exposure to an induction of 1.2T followed by exposure to an oppositely directed induction of 0.3 T
HIRM A/m: "Hard" isothermal remanent magnetization = (IRM 1.2T - IRM-0.3T) / 2
S: The "S" parameter = -IRM1.2T / IRM -0.3T
Paramagnetic MS: Paramagnetic magnetic susceptibility determined from the slope of the hysteresis curve above an induction of 0.9T
Msat A/m: Saturation magnetization determined after removal of paramagnetic component.
Mrs A/m: Saturation Remanent magnetization
Hc mT: Coercivity determined after removal of para magnetic component.
Hcr mT: Coercivity of remanence
Mrs/Msat
Hcr/Hc
Parts-per-Million Abundances for the following elements
Ba
Cr
Cu
Fe
La
Mn
Ni
Rb
V
Zn
Zr
Ti WT%: Weight-percent of Titanium
Total Carbon (percent)
Carbonate Carbon (percent)
Organic Carbon (percent)
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Open-File Report 95-673
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Kevin M. Foley
Contact_Address:
Address_Type: mailing address
Address:
Mail Stop 918 National Center
U.S. Geological Survey
12201 Sunrise Valley Drive
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: (703) 648-5285
Contact_Facsimile_Telephone: (703) 648-6560
Contact_Electronic_Mail_Address: kfoley@usgs.gov
Distribution_Liability:
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards (or with the North American Stratigraphic Code). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Columnar text (tab-delimited)
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Metadata_Reference_Information:
Metadata_Date: 20160613
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
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://geo-nsdi.er.usgs.gov/metadata/open-file/95-673/metadata.html>
Generated by mp version 2.9.48 on Tue Jul 03 20:06:34 2018