Description: 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.
Global identifier:
Doi(
"10.5880/digis.e.2023.007",
)
Origins: /Wissenschaft/GFZ
Tags: Chlorit ? Zirkonium ? Manganoxid ? Bentonit ? Argentinien ? Chile ? Ecuador ? Peru ? Geografische Koordinaten ? Kind ? Granit ? Karte ? Feldspat ? Daten ? Quarz ? Studie ? Meeresgewässer ? Glimmer ? kaolinite ? Rb-Sr ? Re-Os ? Sm-Nd ? South America ? Th-Pb ? U-Pb ? U-Th-He ? U-Th-Sm-He ? actinolite ? adularia ? albite ? allanite ? alunite ? amphibole ? apatite ? biotite ? compound material > rock > composite genesis rock > metamorphic rock ? cryptomelane ? cummingtonite ? fuchsite ? glaucophane ? hornblende ? illite ? jarosite ? Ar40_Ar39 ? metamorphic rocks ? microcline ? molybdenite ? monazite ? muscovite ? natroalunite ? orthoclase ? phengite ? phlogopite ? plagioclase ? Bolivia ? radiometric dates ? rutile ? sericite ? titanite ? tonalite ? tremolite ? tuff ? whole rock ? xenotime ? Brazil ? C14 ? Colombia ? 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 ? Earth and Environmental Sciences ? Electron spin resonance age analysis ? Fission track counting ? GEOROC Expert Dataset ? He ? K feldspar ? K-Ar ? Ne21 ? Pb206_U238 ? Pb207_Pb206 ? pyrophyllite ?
License: cc-by/4.0
Language: Englisch/English
Issued: 2022-01-01
Time ranges: 2022-01-01 - 2022-01-01
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