- Usage in publication:
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- Leter Ranch Bed
- Modifications:
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- Named
- AAPG geologic province:
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- Great Basin province
Summary:
Unit is named the Leter Ranch Bed of the Pyramid Lake Member (new) of the Mount Mazama Formation. Is exposed in the Carson Desert of the Lake Lahontan area, NV. Consists of a 1-cm-thick bed of white tephra, present as an ashy parting. Is interbedded with the lower member of the Sehoo Formation. Overlies the Wono Bed (new) of the Pyramid Lake Member, underlies the Upsal Hogback Bed (new) of the Carson Desert Formation (new). Age is Pleistocene, 35 to 11.5 ka. (B1565)
Source: GNU records (USGS DDS-6; Menlo GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).