CSV and XLS table with information from the smear slides taken from the U.S. Geological Survey cruise 2008-008-FA cores collected in 2008 from offshore Puerto Rico and U.S. Virgin Islands

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Frequently anticipated questions:

What does this data set describe?
Who produced the data set?
Why was the data set created?
How was the data set created?
How reliable are the data; what problems remain in the data set?
How can someone get a copy of the data set?
Who wrote the metadata?

What does this data set describe?

Title:

CSV and XLS table with information from the smear slides taken from the U.S. Geological Survey cruise 2008-008-FA cores collected in 2008 from offshore Puerto Rico and U.S. Virgin Islands

Abstract:

In 2008, as a collaborative effort between Woods Hole Oceanographic Institution and the U.S. Geological Survey, 20 giant gravity cores were collected from areas surrounding Puerto Rico and the U.S. Virgin Islands. The regions sampled have had many large earthquake and landslide events, some of which are believed to have triggered tsunamis. The objective of this coring cruise, carried out aboard the National Oceanic and Atmospheric Administration research vessel Seward Johnson, was to determine the age of several substantial slope failures and seismite layers near Puerto Rico in an effort to map their temporal distribution. Data gathered from the cores collected in 2008 and 11 archive cores from the Lamont-Doherty Earth Observatory are included in this report. These data include lithologic logs, core summary sheets, x-ray fluorescence, wet-bulk density, magnetic susceptibility, grain-size analyses, radiographs, and radiocarbon age dates.

Supplemental_Information:

For more information on the USGS cruise, please see: https://cmgds.marine.usgs.gov/fan_info.php?fan=2008-008-FA

How might this data set be cited?
U.S. Geological Survey, 2014, CSV and XLS table with information from the smear slides taken from the U.S. Geological Survey cruise 2008-008-FA cores collected in 2008 from offshore Puerto Rico and U.S. Virgin Islands: Open-File Report 2014-1227, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.
Online Links:
This is part of the following larger work.
Hoy, Shannon K., Chaytor, Jason D., and Uri S. ten Brink, 2014, Core Data From Offshore Puerto Rico and the U.S. Virgin Islands: Open-File Report 2014-1227, U.S. Geological Survey, Reston, VA.
Online Links:
- https://doi.org/10.3133/ofr20141227
What geographic area does the data set cover?
West_Bounding_Coordinate: -67.0795
East_Bounding_Coordinate: -64.82283
North_Bounding_Coordinate: 19.17558
South_Bounding_Coordinate: 17.552930
What does it look like?
Does the data set describe conditions during a particular time period?

Beginning_Date: 18-Mar-2008

Ending_Date: 24-Mar-2008

Currentness_Reference:

ground condition; cores collected in 2008
What is the general form of this data set?
How does the data set represent geographic features?
1. How are geographic features stored in the data set?
2. What coordinate system is used to represent geographic features?

How does the data set describe geographic features?

Information not available from original metadata.

Information not available from original metadata. (Source: Information not available from original metadata.)

Core #

Name of core. ##GGC. GGC stands for giant gravity core. (Source: USGS) character string

Smear Slide #

Number of smear slide per core. Numbers repeat between cores. (Source: USGS)

Range of values
Minimum:	1
Maximum:	9
Units:	whole counts

Depth (cm)

Depth from the top of the core that the smear slide was taken (Source: USGS)

Range of values
Minimum:	1
Maximum:	246.5
Units:	centimeter

Grain Size

Observed grain-size by Jason Chaytor (non-organic component) (Source: USGS)

Value	Definition
clay	majority of the sediment seemed >8 phi
clay-silt	sediment seemed to vary between >8 phi and 8 to 4 phi
silt-f.sand	sediment seemed to vary between 8 to 4 phi and 3 to 2 phi
silt-v.f sand	sediment seemed to vary between 8 to 4 phi and 3 to 4 phi
f. sand	majority of sediment seemed between 4 to 3 phi
silt	majority of sediment seemed between 8 to 4 phi
silt-sand	sediment size seems to vary between 8 to 4 phi and 2 to 1 phi

Quartz

Abundance of Quartz in sample (non-organic component) (Source: USGS)

Value	Definition
-	Not present
C	Common (5-25 %)
C-A	common to abundant (5-75%)
P	Present (1-5%)
R	Rare (1%)
?	abundance unknown

Feldspar

Abundance of Feldspar in sample (non-organic component) (Source: USGS)

Value	Definition
-	not present
C	Common (5-25%)
P	Present (1-5%)
?	abundance unknown

Dark Lithics

abundance of dark lithics (non-organic component) (Source: USGS)

Value	Definition
-	not present
P	Present (1-5%)
R	Rare (1%)
C-A	Common to abundant (5-75%)

Manganese

Abundance of Manganese (non-organic component) (Source: USGS)

Value	Definition
-	not present
C	Common (5-25%)
P	Present (1-5%)

Other

Other identified non-organics present. Blank indicates no other non-organics identified. (Source: USGS) character string

Forams

Abundance of forams in sample (organic component) (Source: USGS)

Value	Definition
C	Common (5-25%)
P	Present (1-5%)
-	not present
R	Rare (1%)
P-C	Present to Common (1-25%)
C-A	Common to abundant (5-75%)
A	Abundant (25-75%)

Sponge Spicules

Abundance of sponge spicules (organic components) (Source: USGS)

Value	Definition
A	abundant (25-75%)
C-A	Common to abundant (5-75%)
-	not present
P	present (1-5%)
C	common (5-25%)
P-C	Present to common (1-25%)

Carbonante Fragments

abundance of carbonate fragments (organic components) (Source: USGS)

Value	Definition
-	not present
P	Present (1-5%)
R	Rare (1%)
C	Common (5-25%)
P-C	present to common (1-25%)
A	abundant (25-75%)

Pteropods

Abundance of pteropods in sample (organic component) (Source: USGS)

Value	Definition
R	Rare (1%)
-	not present
P	Present (5-25%)
P-C	Present to common (1-25%)
R-P	rare to present (1-5%)
C	common (5-25%)

Other

abundance of other organic components. Blank indicates no other organic components present. (Source: USGS) character string

Comments

Comments made by Jason D. Chaytor that either added specificity or supplied information not applicable to the previous attributes. (Source: USGS) character string

Entity_and_Attribute_Overview:

There are blank lines in between cores. The core on the first line of data is applicable until the next core denoted.
Although the core smears are not geospatial, they are related to the core locations which are available in the PRcore_locations shapefile available from https://pubs.usgs.gov/of/2014/1227/data/1-CoreLocations/PRcore_locations.zip.

Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
- U.S. Geological Survey
Who also contributed to the data set?
To whom should users address questions about the data?

Jason D. Chaytor

U.S. Geological Survey

Research Geologist

384 Woods Hole Road
Woods Hole, MA

(508) 548-8700 x2351 (voice)

(508) 457-2310 (FAX)

jchaytor@usgs.gov

Why was the data set created?

The CSV and XLS files describe the depth at where smear slides were taken for the 2008-008-FA cores and the observations made from the smear slides.

How was the data set created?

From what previous works were the data drawn?
GGC (source 1 of 1)
Hoy, Shannon K., Chaytor, Jason D., and Uri S. ten Brink, 2014, Core data from offshore Puerto Rico and the U.S. Virgin Islands: Open-File Report 2014-1227, U.S. Geological Survey, Reston, VA.
Online Links:
- https://pubs.usgs.gov/of/2014/1227/
Type_of_Source_Media: physical samples
Source_Contribution:
The gravity cores collected during U.S. Geological Survey field activity 2008-008-FA. The Woods Hole Oceanographic Giant Gravity Corer (GGC) was used to collect the 20 cores in 2008. The gravity corer is a large diameter (10 centimeter) sampler that collects cores up to 6.5 meters in length. During field activity 2008-008-FA the corer was not rigged with liner longer than approximately 3 meters. Although cores were attempted at 40 core sites, core was recovered at only 20 sites. Seven additional sites yielded only samples (bagged) from the core catcher or cutting head. Of the 20 successful cores, three also have cutter/catcher bag samples.
How were the data generated, processed, and modified?
Date: 2009 (process 1 of 5)
The 2008-008-FA cores were sampled with a toothpick to get a small surficial sample that was then spread onto a slide by Jason D. Chaytor. Jason then analyzed the samples with a microscope for visual compositional observations. This process step and the following process step were performed by the same person. Person who carried out this activity:

Jason D. Chaytor

U.S. Geological Survey

Research Geologist

384 Woods Hole Road
Woods Hole, MA

(508) 548-8700 x2351 (voice)

(508) 457-2310 (FAX)

Data sources used in this process:
- GGC
Data sources produced in this process:
- SmearSlides
Date: unknown (process 2 of 5)
The observations from the smear slides were added into a XLS table and also converted to a CSV.
Date: 03-Oct-2017 (process 3 of 5)
Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Added additional online links in the Identification section. Fixed a link to data in the entity and attribute overview section. Minor fixes to the attribute format for some attributes were needed. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. Person who carried out this activity:

U.S. Geological Survey

Attn: VeeAnn A. Cross

Marine Geologist

384 Woods Hole Road
Woods Hole, MA

508-548-8700 x2251 (voice)

508-457-2310 (FAX)

vatnipp@usgs.gov

Date: 20-Jul-2018 (process 4 of 5)
USGS Thesaurus keywords added to the keyword section. Person who carried out this activity:

U.S. Geological Survey

Attn: VeeAnn A. Cross

Marine Geologist

384 Woods Hole Road
Woods Hole, MA

508-548-8700 x2251 (voice)

508-457-2310 (FAX)

vatnipp@usgs.gov

Date: 08-Sep-2020 (process 5 of 5)
Added keywords section with USGS persistent identifier as theme keyword. Person who carried out this activity:

U.S. Geological Survey

Attn: VeeAnn A. Cross

Marine Geologist

384 Woods Hole Road
Woods Hole, MA

508-548-8700 x2251 (voice)

508-457-2310 (FAX)

vatnipp@usgs.gov
What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

How well have the observations been checked?
Observations were double checked that they related to the core the slides were taken from.
How accurate are the geographic locations?
How accurate are the heights or depths?
Where are the gaps in the data? What is missing?
This table includes all 56 smear slide samples from 19 of the 20 2008-008-FA cores. The cores that had smear slides taken are: 5GGC, 7GGC, 8GGC, 9GGC, 10GGC, 12GGC, 13GGC, 17GGC, 18GGC, 20GGC, 21GGC, 22GGC, 23GGC, 24GGC, 28GGC, 31GGC, 33GGC, 38GGC and 40GGC. 34GGC is the only one of the 20 cores that did not have smear slide samples.
How consistent are the relationships among the observations, including topology?
The 2008PR_smearslides table includes observations from all of the smear slides taken from the 2008-008-FA cores. The CSV and XLS files are replicates of the same information.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
The Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.

Who distributes the data set? (Distributor 1 of 1)

Jason D. Chaytor

U.S. Geological Survey

Research Geologist

384 Woods Hole Road
Woods Hole, MA

(508) 548-8700 x2351 (voice)

(508) 457-2310 (FAX)

jchaytor@usgs.gov
What's the catalog number I need to order this data set? Downloadable Data
What legal disclaimers am I supposed to read?
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product or process disclosed, nor represent that its use would not infringe on privately owned rights. 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. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

How can I download or order the data?

Availability in digital form:

Data format:	The WinZip version 18 file contains both 2008PR_smearslide.csv and 2008PR_smearslide.xls. It also includes the FGDC metadata file. in format XLS (version Microsoft Excel 2010) Microsoft Excel spreadsheet Size: 0.02
Network links:	https://pubs.usgs.gov/of/2014/1227/data/9-SmearSlides/2008PR_smearslides.zip

Data format:	The WinZip version 18 file contains both 2008PR_smearslide.csv and 2008PR_smearslide.xls. It also includes the FGDC metadata file. in format CSV (version Microsoft Excel 2010) comma separated value Size: 0.02
Network links:	https://pubs.usgs.gov/of/2014/1227/data/9-SmearSlides/2008PR_smearslides.zip

Cost to order the data: None.

What hardware or software do I need in order to use the data set?
The user must be able to unzip a WinZip18 compressed file as well as read an XLS or CSV table.

Who wrote the metadata?

Dates:

Last modified: 16-Nov-2021

Metadata author:

U.S. Geological Survey

Attn: Shannon K. Hoy

Research Associate II

384 Woods Hole Road

Woods Hole, MA

United States

(508) 548-8700 x2297 (voice)

(508) 457-2310 (FAX)

whsc_data_contact@usgs.gov

Contact_Instructions:

The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid.

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2014-1227/2008PR_smearslidesmeta.faq.html>