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Data Publication

Radiometric Dates from the South American Andes and Adjacent Areas: A Compilation - part 1 igenous rocks

Pilger, Rex H. Jr

GFZ Data Services

(2022)

Descriptions

A compilation of 39,070 published radiometric dates for igneous 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 sedimentary and metamorphic rocks are available at https://doi.org/10.5880/digis.e.2023.006 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
igneous rocks
South America
Argentina
Bolivia
Brazil
Chile
Colombia
Ecuador
Peru
ash
charcoal
pumice
volcanic glass
whole rock
basalt
diorite
monzodiorite
obsidian
monzonite
actinolite
adularia
alunite
amphibole
apatite
biotite
clinopyroxene
hornblende
illite
K feldspar
kaersutite
mica
molybdenite
monazite
muscovite
natrojarosite
nepheline
olivine
orthoclase
phlogopite
plagioclase
pyroxene
rutile
sanidine
sericite
titanite
zircon
Ar40_Ar39
C14
Electron spin resonance age analysis
Fission track counting
He
K-Ar
Pb-Pb
Pb206_U238
Pb207_Pb206
Pb207_U235
Rb-Sr
Re-Os
Sm-Nd
U-Pb
U-Th
U-Th-He
U-Th-Pb
compound material > rock > igneous rock
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
pumice
pumice
pumice
volcanic glass
basalt
diorite
obsidian
monzonite
actinolite
amphibole
apatite
biotite
hornblende
illite
mica
molybdenite
monazite
muscovite
nepheline
olivine
orthoclase
phlogopite
feldspar - plagioclase
rutile
sanidine
sericite
titanite
zircon
potassium-argon dating
potassium-argon age
lead-lead dating
lead-lead 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
igneous rock - extrusive
volcanic glass
pumice
unconsolidated sediment
tephra
pumice
analogue modelling material
granular modelling material
natural granular material
pumice
basic extrusive
basalt
igneous rock - intrusive
intermediate intrusive
diorite
obsidian
monzonite
minerals
silicate minerals
inosilicates
amphibole
actinolite
carbonate minerals
apatite
phyllosilicates
mica
biotite
hornblende
clay
illite
sulfide minerals
molybdenite
phosphate minerals
monazite
muscovite
tectosilicates
feldspathoid
nepheline
nesosilicates
olivine
feldspar - K-feldspar
orthoclase
phlogopite
feldspar - plagioclase
oxide mineral
rutile
sanidine
sericite
titanite
zircon
analysis
geochronology
potassium-argon dating
measured property
age of sample
potassium-argon age
lead-lead dating
lead-lead 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

MSL enriched sub domains i

geochemistry


Source publisher

GFZ Data Services


DOI

10.5880/digis.e.2023.005


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 1 igenous rocks [Data set]. GFZ Data Services. https://doi.org/10.5880/DIGIS.E.2023.005


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