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Metadata Files

Data Publication

Radiometric Dates from the South American Andes and Adjacent Areas: A Compilation - part 2 sedimentary rocks

Pilger, Rex H. Jr.

GFZ Data Services

(2022)

Descriptions

A compilation of 90,688 published radiometric dates for sedimentary rocks from the South American Andes and adjacent parts of South America have been tabulated for access by researchers via GEOROC Expert Datasets. The compilation exists as a spreadsheet for access via MS Excel, Google Sheets, and other spreadsheet applications. Initial igneous compilations were utilized in two publications by the author, Pilger (1981, 1984). The compilations have been added to in subsequent years with the metamorphic and sedimentary compilations separated in the last few years. Locations in latitude and longitude are largely taken from the original source, if provided, with UTM locations maintained and converted; in some cases, sample locations were digitized from electronic maps if coordinates were otherwise not available. Analytical results are not included to prevent the files from becoming too large. The existing compilation incorporates compilations by other workers in smaller regions of the Andes. References to original and compilation sources are included. While I am updating reconstructions of the South American and Nazca/Farallon plates, incorporating recent studies in the three oceans, for comparison with the igneous dates for the past 80 m. y., it is hoped that the spreadsheets will be of value to other workers. Reliability: In most cases the data have been copy/pasted from published or appendix tables. In a few cases, the location has been digitized from published maps; the (equatorial equidistant) maps were copied into Google Earth and positioned according to indicated coordinates, with locations digitized and copied/pasted into the spreadsheet. (It is possible that published maps are conventional Mercator-based, even if not so identified, rather than either equatorial equidistant or Universal Transverse Mercator; this can be a source of error in location. For UTMs, the errors should be minor.) Duplicates are largely recognized by equivalent IDs, dates, and uncertainties. Where primary sources have been accessed, duplicate data points in compilations are deleted. (Analytic data are NOT included.) This compilation is part of a series. Companion compilations of radiometric dates from igneous and metamorphic rocks are available at https://doi.org/10.5880/digis.e.2023.005 and https://doi.org/10.5880/digis.e.2023.007, respectively.
The DIGIS geochemical data repository is a research data repository in the Earth Sciences domain with a specific focus on geochemical data. It is hosted at GFZ Data Services through a collaboration between the Digital Geochemical Data Infrastructure (DIGIS) for GEOROC 2.0 (https://digis.geo.uni-goettingen.de) and the GFZ German Research Centre for Geosciences. The repository archives, publishes and makes accessible user-contributed, peer-reviewed research data that fall within the scope of the GEOROC database. Compilations of previously published data are also made available on the GEOROC website (https://georoc.eu) as Expert Datasets.

Keywords


Originally assigned keywords
Earth and Environmental Sciences
GEOROC Expert Dataset
radiometric dates
sedimentary rocks
South America
Argentina
Bolivia
Brazil
Chile
Colombia
Peru
carbonate
charcoal
enamel
bone
microfossils
mollusc
organic material
peat
whole rock
wood
adularia
alunite
amphibole
apatite
biotite
plagioclase
sanidine
zircon
Ar40_Ar39
C14
Fission track counting
He
K-Ar
Pb206_U238
Pb207_Pb206
Pb207_U235
Sr-Sr
U-Pb
U-Th-He
U-Th-Sm-He
compound material > rock > sedimentary rock
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > CHEMICAL CONCENTRATIONS
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPES
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPIC AGE

Corresponding MSL vocabulary keywords
peat
amphibole
apatite
biotite
feldspar - plagioclase
sanidine
zircon
potassium-argon dating
potassium-argon age
uranium-lead dating
uranium-lead age

MSL enriched keywords
unconsolidated sediment
organic rich sediment
peat
minerals
silicate minerals
inosilicates
amphibole
carbonate minerals
apatite
phyllosilicates
mica
biotite
tectosilicates
feldspar - plagioclase
feldspar - K-feldspar
sanidine
nesosilicates
zircon
analysis
geochronology
potassium-argon dating
measured property
age of sample
potassium-argon age
uranium dating
uranium-lead dating
uranium age
uranium-lead age

MSL enriched sub domains i

geochemistry

Source

https://dataservices.gfz-potsdam.de/digis/showshort.php?id=81bea734-fba2-11ed-95b8-f851ad6d1e4b

Source publisher

GFZ Data Services


DOI

10.5880/digis.e.2023.006


Creators

Pilger, Rex H. Jr.

ORCID:

https://orcid.org/0000-0003-3715-5084


Contributors

Pilger, Rex H. Jr.

ContactPerson

ORCID:

https://orcid.org/0000-0003-3715-5084

Pilger, Rex H.

ContactPerson

DIGIS Team

ContactPerson

University of Göttingen, Göttingen, Germany


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Citation

Pilger, R. H. J. (2022). Radiometric Dates from the South American Andes and Adjacent Areas: A Compilation - part 2 sedimentary rocks [Data set]. GFZ Data Services. https://doi.org/10.5880/DIGIS.E.2023.006


Dates

Created:

2022-02-06

Issued:

2022


Rights

Creative Commons Attribution 4.0 International


Geo location(s)

Argentina, Plurinational State of Bolivia, Brazil, Chile, Colombia, Ecuador, Peru


Spatial coordinates