40Ar/39Ar Geochronology Results for Lunar Crater Volcanic Field Basalts, Nevada

By Matthew T Heizler

New Mexico Tech

Published on

Abstract

Full references (two reports):
Heizler MT (2013) 40Ar/39Ar Geochronology Results for Lunar Crater Volcanic Field Basalts, Nevada. New Mexico Geochronological Research Laboratory internal report NMGRL-IR-792, https://vhub.org.resources/2503.

Heizler MT (2014) 40Ar/39Ar Geochronology Results for Lunar Crater Volcanic Field Basalts, Nevada. New Mexico Geochronological Research Laboratory internal report NMGRL-IR-844, https://vhub.org.resources/2503.

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Heizler (2013) contains results of 40Ar/39Ar age analyses for the following three basaltic units in the Lunar Crater Volcanic field, Nevada:

Sample LC11-71 is lava from Easy Chair volcano, collected at:
Latitude - N 38degrees 26.846'
Longitude - W 116degrees 01.912'
Reference: Valentine GA, Cortés JA (2013) Time and space variations in magmatic and phreatomagmatic eruptive processes at Easy Chair (Lunar Crater Volcanic Field, Nevada, USA). Bulletin of Volcanology 75:752, doi:10.1007/s00445-013-0752-z.

Sample LC10-1 is lava from the Giggle Spring volcano, collected at:
Latitude - N 38degrees 32.267'
Longitude - W 115degrees 57.277'

Sample LC10-5 is lava from Mizpah volcano, collected at:
Latitude - N 38degrees 32.691'
Longitude - W115degrees 58.277'

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Heizler (2014) contains results of 40Ar/39Ar age analyses for the following eight basaltic units in the Lunar Crater Volcanic Field, Nevada:

GVLC-13-35-1 is a major lava field covering much of the area on the west side of Lunar Lake.

Latitude - N38°24.809’

Longitude - W116°01.117’

 

GVLC-13-50 is the stratigraphically lowest basaltic lava exposed in the wall of Lunar Crater maar.

Latitude - N38°23.206'

Longitude - W116°03.945'

 

GVLC-13-51 is a lava overlying GVLC-13-50 lava in the wall of Lunar Crater maar.

Latitude - N38°23.213'

Longitude - W116°03.946'

 

GVLC-13-53 is lava associated with an agglomerate rampart that comprises the uppermost basaltic unit in the wall of Lunar Crater maar.

Latitude - N38°23.231'

Longitude - W116°03.918'

 

LC10-23 is lava associated with the Marcath cone.

Latitude - N38°29.446'

Longitude - W116°00.043'

 

LC11-48 is lava associated with an old eruption from the same site as Easy Chair volcano, informally called "proto-Easy Chair"

Latitude - N38°26.383'

Longitude - W116°02.748'

 

LC12-79 is from a dike exposed in the interior of a prominent red scoria cone near the northern edge of the volcanic field, informally called "Mosca" cone.

Latitude - N38°32.144'

Longitude - W115°56.125'

 

LC12-85 is a relatively young lava field just north of Lunar Crater maar.

Latitude - N38°23.986'

Longitude - W116°03.715'

Cite this work

Researchers should cite this work as follows:

  • Matthew T Heizler (2013), "40Ar/39Ar Geochronology Results for Lunar Crater Volcanic Field Basalts, Nevada," https://theghub.org/resources/2503.

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