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National Geologic Map Database

Geologic Unit: Lava Dam

Usage:

Lava Dam Member of Notch Peak Formation (UT*)


Subunits:

(alphabetical) --all in UT*: Lawson Cove Bed, Tank Canyon Bed.


Geologic age:

Late Cambrian (Furongian; Millardan to Ibexian; Sunwaptan to Skullrockian)*


Type section, locality, area and/or origin of name:

Type section (=principal reference section of Notch Peak Formation): [Sneakover Pass area], in sec. 5 [unsurveyed], T. 20 S., R. 13 W., Notch Peak 15-min quadrangle, central House Range, Millard Co., central western UT (Hintze and others, 1988).
Reference section: Lawson Cove section, in E/2 sec. 4, T. 25 S., R. 15 W., Wah Wah Summit 15-min quadrangle, Gray Hills area, Wah Wah Mountains, Millard Co., central western UT (Hintze and others, 1988).
Named from outcrops on both north and south sides of the "Lava Dam," a geologic feature shown by L.F. Hintze, 1974 (USGS Misc. Field Studies Map MF-633, sheet 1, C'-C" cross section), in [SE/4] sec. 6, T. 23 S., R. 13 W., The Barn 15-min quadrangle, central House Range, Millard Co., central western UT (Hintze and others, 1988).


AAPG geologic province:

Great Basin province*
South Western Overthrust*


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).