Science Explorer

Exploring: Radiometric Dating

Radiometric dating and the age of the earth: A reply to scientific creationism

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70010575 (HTML Document 14.71 KB)

Radiometric dating and the age of the earth: A reply to scientific creationism Federation Proceedings The Publications Warehouse does not have links ... to digital versions of this publication at this time Download citation as: RIS Title: Radiometric dating and the age of the earth: A reply to scientific creationism Series title: Federation Proceedings ...

Radiometric dating, geologic time, and the age of the Earth; a reply to "scientific" creationism

Modified 2012-02-02
https://pubs.er.usgs.gov/publication/ofr86110 (HTML Document 15.42 KB)

Radiometric dating, geologic time, and the age of the Earth; a reply to "scientific" creationism Open-File Report 86-110 Title: Radiometric dating ...

Landsat-5 TM reflective-band absolute radiometric calibration

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70026377 (HTML Document 19.62 KB)

spatial resolution remote sensing imagery, dating back to its launch in March 1984. Historically, the radiometric calibration procedure for this imagery ... lifetime radiometric calibration model for the instrument's reflective bands (1-5 and 7) and is derived, in part, from the IC response without the related ... degradation effects and is tied to the cross calibration with the Landsat-7 Enhanced Thematic Mapper Plus. Reflective-band absolute radiometric ...

Radiometric dating of intrusive rocks in the Cottonwood area, Utah

Modified 2015-12-28
https://pubs.er.usgs.gov/publication/70160636 (HTML Document 22.16 KB)

Radiometric dating of intrusive rocks in the Cottonwood area, Utah Journal of Research of the U.S. Geological Survey By: M.D. Crittenden Jr., J.S ... Oquirrh Mountains. Radiometric dating of intrusive rocks in the Cottonwood area, Utah Series title: Volume: 1 Issue: 2 N Part or all of this report is ... . Stuckless, R. W. Kistler, and T.W. Stern Abstract Recently completed fission-track and K-Ar dating of zircon, sphene, apatite ...

Geochronology of the Xihuashan composite granitic body and tungsten mineralization, Jiangxi province, south China.

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70014258 (HTML Document 16.11 KB)

Abstract One of the goals of this visit was to collect samples of different granitic rocks in the pluton for radiometric dating to establish the ...

Middle Palaeolithic refugium, or archaeological misconception? A new U-Series and radiocarbon chronology of Abric Agut (Capellades, Spain)

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70024323 (HTML Document 17.97 KB)

neandertals. However, radiometric dating clearly indicates a Late Pleistocene-Early Holocene age. ?? 2002 Elsevier Science Ltd. All rights reserved. Additional publication details Series title: ...

Fission track dating of kimberlitic zircons

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70011443 (HTML Document 18.90 KB)

citation as: RIS Abstract The only reliable method for dating kimberlites at present is the lengthy and specialized hydrothermal procedure that ... extracts 206Pb and 238U from low-uranium zircons. This paper describes a second successful method by fission track dating of large single-crystal zircons ... first radiometric ages (707.9 ?? 59.6 and 705.5 ?? 61.0 m.y.) of crustal zircons from kimberlites in northwest Liberia. The fission track ages agree well ...

New argon-argon (40Ar/39Ar) radiometric age dates from selected subsurface basalt flows at the Idaho National Laboratory, Idaho

Modified 2015-04-09
https://pubs.er.usgs.gov/publication/sir20155028 (HTML Document 24.72 KB)

from flows that had previously published paleomagnetic data. Samples were sent to Rutgers University for argon-argon radiometric dating analyses ... Abstract In 2011, the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, collected samples for 12 new argon-argon radiometric ... . Paleomagnetic and stratigraphic data were used to constrain the results of the age dating experiments to derive the preferred age for each basalt flow ...

Radiometric dating of quaternary deposits and the hominid mandible of lake banyolas, Spain

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70016485 (HTML Document 17.06 KB)

Radiometric dating of quaternary deposits and the hominid mandible of lake banyolas, Spain Journal of Archaeological Science The Publications ... mandible travertine, and we conclude the mandible is much younger than previously believed. ?? 1991. Additional publication details Title: Radiometric ... dating of quaternary deposits and the hominid mandible of lake banyolas, Spain Series title: ...

Refined depositional history and dating of the Tongaporutuan reference section, north Taranaki, New Zealand: new volcanic ash U-Pb zircon ages, biostratigraphy and sedimentation rates

Modified 2016-06-13
https://pubs.er.usgs.gov/publication/70173827 (HTML Document 23.51 KB)

Refined depositional history and dating of the Tongaporutuan reference section, north Taranaki, New Zealand: new volcanic ash U-Pb zircon ages ... . Kingsley-Smith, and Stephan A. Graham Abstract This study presents new radiometric ages from volcanic ash beds within a c. 1900 m ... complements the regional late Miocene biostratigraphic dating framework. Study Area Title: Refined depositional history and dating of the Tongaporutuan ...

Chemical disaggregation of kaolinitic claystones (tonsteins and flint clays)

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70024006 (HTML Document 17.99 KB)

the claystone's origin and, in the case of tonsteins (altered volcanic ashes), may also provide minerals suitable for radiometric dating. Separation of ...

Cretaceous biostratigraphy in the Wyoming thrust belt.

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70011445 (HTML Document 18.10 KB)

Abstract In the Cretaceous section of the thrust belt, fossils are especially useful for dating and correlating repetitive facies of different ages in ... structurally complex terrain. The biostratigraphic zonation for the region is based on megafossils (chiefly ammonites) , which permit accurate dating and ... correlation of outcrop sections, and which have been calibrated with the radiometric time scale for the Western Interior. Molluscan and vertebrate ...

Below the disappearing marshes of an urban estuary: historic nitrogen trends and soil structure

Modified 2014-07-24
https://pubs.er.usgs.gov/publication/70117793 (HTML Document 26.84 KB)

strength to examine differences among disappearing (Black Bank and Big Egg) and stable marshes (JoCo). Radiometric dating and nitrogen isotope analyses ... . Among these stressors, wastewater nutrients are suspected to be an important contributing cause of marsh deterioration. We used census data, radiometric ... dating, stable nitrogen isotopes, and soil surveys to examine the temporal relationships between human population growth and soil nitrogen; and we ...

Airfall tuff in the Browns Park Formation, northwestern Colorado and northeastern Utah.

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70012206 (HTML Document 16.46 KB)

. They have received only cursory attention other than for the purpose of radiometric dating. The present writer began study of the tuffs in 1980 ...

Measurements of210Pb,137Cs, organic carbon and trace elements in sediments of the Illinois and Mississippi rivers

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70015262 (HTML Document 17.53 KB)

Nuclear Chemistry Articles By: Abstract Radiometric dating of sediment accumulations by137Cs and210Pb has been successfully initiated in the Illinois and ...

SOFIA - OFR 2006-1271 - Methods

Modified 2013-09-04
https://sofia.usgs.gov/publications/ofr/2006-1271/methods.html (HTML Document 16.26 KB)

Descriptions and Preliminary Report on Sediment Cores from the Southwest Coastal Area, Part II: Collected July 2005, Everglades National Park, Florida | SOFIA - OFR 2006-1271 - Methods

Age constraints on the proposed Plio-Pleistocene boundary stratotype at Vrica, Italy.

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70011681 (HTML Document 17.13 KB)

clarify this dating confusion, and we present new radiometric data on ashes from the proposed stratotype section, Vrica, Italy, which indicate that the ...

Geology of North Cascades National Park - Newhalem

Modified 2016-12-13
https://geomaps.wr.usgs.gov/parks/noca/nocaft2.html (HTML Document 11.37 KB)

FIELD TRIP STOP 2 - North Cascade Highway (State Route 20) Cliffs of orthogneiss rise above Newhalem Newhalem Dating ancient magma using the zircon ... radiometric clock   Minerals to see in tonalite orthogneiss .   Zircon crystal greatly enlarged. In order to determine the age of the rock, the ... dating rocks because it resists breakage, melting, and recrystallization during metamorphism. Its real clockwork virtue is that the radioactive ... the crystal, the a geochronologist can calculate how long ago the crystal formed. The zircon radiometric clock from the orthogneiss at Newhalem has ...

Paleomagnetism of the Red Dog Zn-Pb massive sulfide deposit in northern Alaska

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70026512 (HTML Document 21.06 KB)

components are constrained by their relationship with geochemistry, radiometric age dating, and hypotheses for the Mesozoic tectonic history of the Brooks ... with replacement quartz that has a radiometric date (white mica from a vug, 39Ar/40Ar) of 126 Ma. The paleolatitude for characteristic remanent ... orogenesis. Geologic mapping suggests that most of the ore is syngenetic, formed at 330 to 340 Ma, and a radiometric date (Re-Os on pyrite) yields an age ... probably acquired during the mineralizing process as well. The combined radiometric ages and paleomagnetic data sets can be best interpreted by assuming ...

Age constraints on the proposed Plio-Pleistocene boundary stratotype at Vrica, Italy

Modified 2012-03-12
https://pubs.er.usgs.gov/publication/70011575 (HTML Document 18.08 KB)

Myr. We aim here to clarify this dating confusion, and we present new radiometric data on ashes from the proposed stratotype section, Vrica, Italy ...