Science Explorer

Exploring: Geochronology

Argon Geochronology laboratory in Denver, Colorado

https://www.usgs.gov/media/images/argon-geochronology-laboratory-denver-colorado (HTML Document 42.47 KB)

USGS Argon Geochronology laboratory in Denver, Colorado () ...

Argon Geochronology laboratory in Denver, Colorado

https://www.usgs.gov/atom/23674 (HTML Document 42.47 KB)

USGS Argon Geochronology laboratory in Denver, Colorado () ...

Central Mineral and Environmental Resources Science Center

https://www.usgs.gov/centers/cmersc/science-topics/argon-geochronology (HTML Document 48.76 KB)

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Reconnaissance geology and geochronology of the Precambrian of the Granite Mountains, Wyoming

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr77140 (HTML Document 15.07 KB)

Reconnaissance geology and geochronology of the Precambrian of the Granite Mountains, Wyoming Open-File Report 77-140 Download citation as: RIS ... Reconnaissance geology and geochronology of the Precambrian of the Granite Mountains, Wyoming Series title: Open-File Report Series number: ...

Map and tables showing geochronology and whole-rock geochemistry, Chignik and Sutwik Island quadrangles, Alaska

Modified 2012-02-10
https://pubs.er.usgs.gov/publication/mf1053M (HTML Document 18.05 KB)

Map and tables showing geochronology and whole-rock geochemistry, Chignik and Sutwik Island quadrangles, Alaska Miscellaneous Field Studies Map 1053 ... -M By: Download citation as: RIS Map and tables showing geochronology and whole-rock geochemistry, Chignik and Sutwik Island quadrangles, Alaska Series ...

Summary of isotopic geochronology for the Leadville 1 degree x 2 degrees Quadrangle, central Colorado

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr93615 (HTML Document 14.34 KB)

Summary of isotopic geochronology for the Leadville 1 degree x 2 degrees Quadrangle, central Colorado Open-File Report 93-615 The Publications ... Warehouse does not have links to digital versions of this publication at this time Download citation as: RIS Title: Summary of isotopic geochronology for ...

Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/pp1715 (HTML Document 15.28 KB)

Petrology of the Crazy Mountains dike swarm and geochronology of associated sills, south-central Montana Professional Paper 1715 By: Edward A. du ... geochronology of associated sills, south-central Montana Series title: Professional Paper Series number: ...

Geologic map and summary geochronology of the Anchorage 1 degree x 3 degrees Quadrangle, southern Alaska

Modified 2012-02-10
https://pubs.er.usgs.gov/publication/i2283 (HTML Document 18.14 KB)

Geologic map and summary geochronology of the Anchorage 1 degree x 3 degrees Quadrangle, southern Alaska IMAP 2283 Download citation as: RIS Title ... : Geologic map and summary geochronology of the Anchorage 1 degree x 3 degrees Quadrangle, southern Alaska Series title: 1992 Language: ENGLISH ...

40Ar/39Ar geochronology of igneous rocks in the Taylor Mountains and Dillingham quadrangles in SW Alaska

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr03421 (HTML Document 14.92 KB)

40Ar/39Ar geochronology of igneous rocks in the Taylor Mountains and Dillingham quadrangles in SW Alaska Open-File Report 2003-421 Title: 40Ar/39Ar ... geochronology of igneous rocks in the Taylor Mountains and Dillingham quadrangles in SW Alaska Series title: Open-File Report Series number: ...

Central Colorado Assessment Project - Ar39/Ar40 Geochronology

Modified 2013-03-04
https://minerals.cr.usgs.gov/projects/colorado_assessment/t1st2.html (HTML Document 8.62 KB)

an appropriate age framework for genetic deposit studies and mineral assessments, accurate and precise geochronology is required. Ar 39/ Ar 40 ... geochronology should provide the age controls necessary for the study of many of these plutons and the alteration associated with mineralizing systems. Page Last Modified: 04-Mar-2013@14:35 ...

Ar39/Ar40 Geochronology

Modified 2013-03-04
https://minerals.cr.usgs.gov/projects/colorado_assessment/t1st2.html (HTML Document 8.62 KB)

an appropriate age framework for genetic deposit studies and mineral assessments, accurate and precise geochronology is required. Ar 39/ Ar 40 ... geochronology should provide the age controls necessary for the study of many of these plutons and the alteration associated with mineralizing systems. Page Last Modified: 04-Mar-2013@14:35 ...

Geologic map and geochronology of the Precambrian and adjacent rocks of the Dodge Ranch-Ayres Spring area, Albany County, Wyoming

Modified 2012-02-10
https://pubs.er.usgs.gov/publication/i2235 (HTML Document 18.56 KB)

Geologic map and geochronology of the Precambrian and adjacent rocks of the Dodge Ranch-Ayres Spring area, Albany County, Wyoming IMAP 2235 Download ... citation as: RIS Title: Geologic map and geochronology of the Precambrian and adjacent rocks of the Dodge Ranch-Ayres Spring area, Albany County ...

Preliminary geologic map, cross sections, and summary geochronology of the Anchorage quadrangle, southern Alaska; prepared in cooperation with the State of Alaska Division of Geological and Geophysical Surveys

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr9083 (HTML Document 15.67 KB)

Preliminary geologic map, cross sections, and summary geochronology of the Anchorage quadrangle, southern Alaska; prepared in cooperation with the ... sections, and summary geochronology of the Anchorage quadrangle, southern Alaska; prepared in cooperation with the State of Alaska Division of ...

Preliminary 40Ar/39Ar geochronology of igneous intrusions from Uvalde County, Texas: Defining a more precise eruption history for the southern Balcones Volcanic Province

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr20041031 (HTML Document 15.23 KB)

Preliminary 40Ar/39Ar geochronology of igneous intrusions from Uvalde County, Texas: Defining a more precise eruption history for the southern ... /39Ar geochronology of igneous intrusions from Uvalde County, Texas: Defining a more precise eruption history for the southern Balcones Volcanic Province Series title: Open-File Report Series number: ...

Tectonic, magmatic, and metamorphic history of the New Jersey Highlands: New insights from SHRIMP U-Pb geochronology

Modified 2012-06-28
https://pubs.er.usgs.gov/publication/70003803 (HTML Document 16.26 KB)

Tectonic, magmatic, and metamorphic history of the New Jersey Highlands: New insights from SHRIMP U-Pb geochronology By: Richard A. Volkert, John N ... , and Paul M. Karabinos Title: Tectonic, magmatic, and metamorphic history of the New Jersey Highlands: New insights from SHRIMP U-Pb geochronology ...

Precambrian geochronology of part of northwestern Saudi Arabia, Kingdom of Saudi Arabia

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr84381 (HTML Document 15.34 KB)

Precambrian geochronology of part of northwestern Saudi Arabia, Kingdom of Saudi Arabia Open-File Report 84-381 Title: Precambrian geochronology of ...

40Ar/39Ar and K-Ar geochronology and tectonic significance of the Upper Cretaceous Adel Mountain volcanics and spatially associated Tertiary igneous rocks, northwestern Montana

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/pp1696 (HTML Document 16.61 KB)

40Ar/39Ar and K-Ar geochronology and tectonic significance of the Upper Cretaceous Adel Mountain volcanics and spatially associated Tertiary igneous ... , Steve D. Sheriff, and Anthony J. Irving Download citation as: RIS 40Ar/39Ar and K-Ar geochronology and tectonic significance ...

Geologic map, petrochemistry, and geochronology of the Precambrian rocks of the Bull Camp Peak Quadrangle, Albany County, Wyoming

Modified 2012-02-10
https://pubs.er.usgs.gov/publication/i2236 (HTML Document 18.96 KB)

Geologic map, petrochemistry, and geochronology of the Precambrian rocks of the Bull Camp Peak Quadrangle, Albany County, Wyoming IMAP 2236 By: G.L ... , petrochemistry, and geochronology of the Precambrian rocks of the Bull Camp Peak Quadrangle, Albany County, Wyoming Series title: 1998 Language ...

Geologic map, petrochemistry, and geochronology of the Precambrian rocks of the Fletcher Park-Johnson Mountain area, Albany and Platte counties, Wyoming

Modified 2012-02-10
https://pubs.er.usgs.gov/publication/i2233 (HTML Document 18.79 KB)

Geologic map, petrochemistry, and geochronology of the Precambrian rocks of the Fletcher Park-Johnson Mountain area, Albany and Platte counties ... : Geologic map, petrochemistry, and geochronology of the Precambrian rocks of the Fletcher Park-Johnson Mountain area, Albany and Platte counties, Wyoming ...

Potassium-argon (argon-argon), structural fabrics

Modified 2014-10-09
https://pubs.er.usgs.gov/publication/70093880 (HTML Document 18.34 KB)

Definition: 40Ar/39Ar geochronology of structural fabrics: The application of 40Ar/39Ar methods to date development of structural fabrics in geologic ... -based geochronology. High-precision geochronology of the thermal and fluid flow histories associated with structural fabric development can answer ...