| Abstract: | This report presents the numeric values for the chronology of the paleoclimatically relevant mid-to-late Pleistocene record of the ratios of stable oxygen isotope (delta18O) in vein calcite from Devils Hole, Nev., which recently had been extended into the mid-Holocene. Dating was obtained using 230Th-234U-238U thermal ionization mass spectrometry.
Devils Hole is a subaqueous cave of tectonic origin, which developed in the discharge zone of a regional aquifer in south-central Nevada. The primary groundwater recharge source area is the Spring Mountains, the highest mountain range in southern Nevada [altitude 3,630 meters (m)], approximately 80 kilometers to the east of the cavern. The walls of the open fault zone comprising the cave system are coated with dense vein calcite precipitated from the through-flowing groundwater. The calcite, up to 40 centimeters (cm) thick, contains a continuous record of the sequential variation of the composition of stable oxygen isotopes in the ground water over time. The vein calcite has also proven to be a suitable material for precise uranium-series dating via thermal ionization mass spectrometry utilizing the 230Th-234U-238U decay clock.
Earlier work has presented data from the Devils Hole core DH-11, a 36-cm-long core of vein calcite recovered from a depth of about 30 m below the water table (about 45 m beneath the ground surface). The DH-11 core provided a continuous record of isotopic oxygen variation from 567,700 to 59,800 years before present. Recent work has extended this record up to 4,500 years before
present, into the mid-Holocene epoch. |
| Genre: | USGS Numbered Series |
| ProdID: | 99186 |
| Citation Author: | Landwehr, J.M.; Sharp, W.D.; Coplen, T.B.; Ludwig, K.R.; Winograd, I.J. |
| Citation Contributing Office: | Water Resources |
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| Citation Language: | ENGLISH |
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| Citation No Pagination: | N |
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| Citation Online Only Flag: | N |
| Citation Phsyical Description: | iii, 5 p.; Download of Table |
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| Citation Publisher: | U.S. Geological Survey |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 2011-1082 |
| Citation Search Results Text: | The chronology for the d18O record from Devils Hole, Nevada, extended into the Mid-Holocene; 2011; OFR; 2011-1082; Landwehr, J.M.; Sharp, W.D.; Coplen, T.B.; Ludwig, K.R.; Winograd, I.J. |
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| Citation Year: | 2011 |
| Type: | citation/reference |
| Text: | The chronology for the d18O record from Devils Hole, Nevada, extended into the Mid-Holocene; 2011; OFR; 2011-1082; Landwehr, J.M.; Sharp, W.D.; Coplen, T.B.; Ludwig, K.R.; Winograd, I.J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/ofr_2011_1082.gif |
| URL (INDEX PAGE): | http://pubs.usgs.gov/of/2011/1082/ |
| Date Other: | Fri, 8 Apr 2011 00:00 -0500 |
| Publisher: | U.S. Geological Survey |
