updated	12/28/2004	keith
georef data		2004-049391
BK	"Geologic map of the Big Bald Mountain Quadrangle and part of the Tognini Spring Quadrangle, White Pine County, Nevada."	
BA	Nutt-Constance-J; Hart-Kerry-S	
BF	"U. S. Geological Survey, Denver, CO, United States; Placer Dome NA, United States"	
SO	Map - Nevada Bureau of Mines and Geology. 2004.	
PB	"Nevada Bureau of Mines and Geology. Reno, NV, United States. Pages: 8, 1 sheet. 2004."	
RP	USGSOP Non-USGS publications with USGS authors	
CP	United-States	
PY	2004	
LA	English	
AB	"A geologic map showing Paleozoic carbonate and clastic rocks, Tertiary sedimentary and volcanic rocks, and Quaternary deposits of the the Bald Mountain mining district in Nevada."	
DE	areal-geology; Bald-Mountain-mining-district; Big-Bald-Mountain; Big-Bald-Mountain-Quadrangle; geologic-maps; Little-Bald-Mountain; maps-; Mooney-Basin; Nevada-; Tognini-Spring; Tognini-Spring-Quadrangle; United-States; White-Pine-County-Nevada	
CC	14-Geologic-maps	
DT	Map; Serial; Report	
BL	Monograph	
MC	LAT| N395230; N400000; LONG: W1152624; W1153730.																	
MS	"1|24,000"																	
MP	color-geologic-maps																	
IL	"Refs 25; illus. incl. 1 table, sects."																	
RF	"GeoRef, Copyright 2004, American Geological Institute. Reference includes data supplied by Nevada Bureau of Mines and Geology, Reno, NV, United States"																	
IS	0731-3128																	
CO	#01513																	
RN	145																	
AN	2004-049391																	
UD	200414																	
Sample Data																		
Item	Material	Age	Max_age	Min_age	Age	Max_age	Min_age	LatDD	LongDD	Location_Comment	Loc_prec	Location _Name	Stratigraphic_Formation	Volcanic_Field	Location_Quad	Rock_Class	Rock_Type	State
Units		Ma	Ma	Ma	Ma	Ma	Ma	DD	DD									
Method		1	1	1	2	2	2	3	3		3							
Sample Name																		
Top pit	sericite	157.1	158	156.2				39.93983333	-115.5413333	Determined from precise location on topographic map	0.001	"Big Bald Mountain mining district, southern Ruby Mountains"	Jurassic intrusions of Big Bald Mountain		Big Bald Mountain	altered quartz monzonite	plutonic	NEVADA
RBM pit	whole rock				26.8	27.6	26	39.739	-115.562	"Original data given in degrees, minutes, and seconds or decimal minutes."	0.0001		Jurassic intrusions of Big Bald Mountain		Big Bald Mountain	"felsic dike, late cross-cutting dike"	plutonic	NEVADA
xtl tuff	whole rock				37.3	38.5	36.1	39.4	-115.473	"Original data given in degrees, minutes, and seconds or decimal minutes."	0.0001	"Big Bald Mountain mining district, southern Ruby Mountains"	Caetano Tuff?		Big Bald Mountain	rhyolitic ash-flow tuff	volcanic	NEVADA
xtl tuff	whole rock				30.9	31.8	30	39.456	-115.37	"Original data given in degrees, minutes, and seconds or decimal minutes."	0.0001	"Big Bald Mountain mining district, southern Ruby Mountains"	Caetano Tuff?		Big Bald Mountain	rhyolitic ash-flow tuff	volcanic	NEVADA
Method Data																		
1	AR-AR:SERICITE	106																
2	K-AR	56																
3	SCAN	2004-049391