Data Publication

Radiometric Dates from the South American Andes and Adjacent Areas: A Compilation - part 3 metamorphic rocks

Pilger, Rex H. Jr.

GFZ Data Services

(2022)

Descriptions

A compilation of 29,574 published radiometric dates for metamorphic 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 sedimentary rocks are available at https://doi.org/10.5880/digis.e.2023.005 and https://doi.org/10.5880/digis.e.2023.006, 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
metamorphic rocks
South America
Argentina
Bolivia
Brazil
Chile
Colombia
Ecuador
Peru
bentonite
granite
tonalite
tuff
whole rock
actinolite
adularia
albite
allanite
alunite
amphibole
apatite
biotite
chlorite
cryptomelane
cummingtonite
feldspar
fuchsite
glaucophane
hornblende
illite
jarosite
K feldspar
kaolinite
manganese oxide
mica
microcline
molybdenite
monazite
muscovite
natroalunite
orthoclase
phengite
phlogopite
plagioclase
pyrophyllite
quartz
rutile
sericite
titanite
tremolite
xenotime
zircon
Ar40_Ar39
C14
Electron spin resonance age analysis
Fission track counting
He
K-Ar
Ne21
Pb206_U238
Pb207_Pb206
Rb-Sr
Re-Os
Sm-Nd
Th-Pb
U-Pb
U-Th-He
U-Th-Sm-He
compound material > rock > composite genesis rock > metamorphic rock
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > CHEMICAL CONCENTRATIONS
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPE MEASUREMENTS
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPES
EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY > GEOCHEMICAL PROPERTIES > ISOTOPIC AGE

Corresponding MSL vocabulary keywords
metamorphic rock
bentonite
granite
tonalite
tuff
actinolite
albite
amphibole
apatite
biotite
chlorite
cryptomelane
cummingtonite
glaucophane
hornblende
illite
clay - kaolinite
kaolinite
manganese oxide
mica
microcline
molybdenite
monazite
muscovite
orthoclase
phlogopite
feldspar - plagioclase
pyrophyllite
quartz
rutile
sericite
titanite
tremolite
zircon
potassium-argon dating
potassium-argon age
rubidium-strontium dating
rubidium-strontium age
rhenium-osmium dating
rhenium-osmium age
samarium-neodymium dating
samarium-neodymium age
uranium-lead dating
uranium-lead age

MSL enriched keywords
metamorphic rock
minerals
silicate minerals
phyllosilicates
clay - smectite
bentonite
igneous rock - intrusive
acidic intrusive
granite
tonalite
igneous rock - extrusive
pyroclastic rock
tuff
inosilicates
amphibole
actinolite
tectosilicates
feldspar - plagioclase
albite
carbonate minerals
apatite
mica
biotite
clay
chlorite
oxide mineral
cryptomelane
cummingtonite
glaucophane
hornblende
illite
clay - kaolinite
kaolinite
measured property
manganese
manganese oxide
feldspar - K-feldspar
microcline
sulfide minerals
molybdenite
phosphate minerals
monazite
muscovite
orthoclase
phlogopite
pyrophyllite
quartz
rutile
sericite
nesosilicates
titanite
tremolite
zircon
analysis
geochronology
potassium-argon dating
age of sample
potassium-argon age
rubidium-strontium dating
rubidium-strontium age
rhenium-osmium dating
rhenium-osmium age
samarium-neodymium dating
samarium-neodymium age
uranium dating
uranium-lead dating
uranium age
uranium-lead age

Metadata


MSL enriched sub domains

geochemistry

Resource Type

Dataset


Source

https://dataservices.gfz.de/digis/showshort.php?id=3486d45c-fb95-11ed-95b8-f851ad6d1e4b

Source publisher

GFZ Data Services

DOI

10.5880/digis.e.2023.007

Creators

Pilger, Rex H. Jr.
Personal

Contributors

Pilger, Rex H. Jr.
Personal
Pilger, Rex H.
Personal
DIGIS Team
University of Göttingen, Göttingen, Germany

Citation

Pilger, R. H. J. (2022). Radiometric Dates from the South American Andes and Adjacent Areas: A Compilation - part 3 metamorphic rocks [Data set]. GFZ Data Services. https://doi.org/10.5880/DIGIS.E.2023.007


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Dates

Created 2022-02-06
Issued 2022

Language

- no language entry found -



Rights

Name Creative Commons Attribution 4.0 International
URI https://creativecommons.org/licenses/by/4.0/legalcode
Identifier cc-by-4.0
Identifier Scheme SPDX
Scheme URI https://spdx.org/licenses/

Locations


Geo location(s)

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


Spatial coordinates