U. S. Geological Survey Radiocarbon Dates VIII

Levin, Betsy; Ives, Patricia C; Oman, C.L.; Rubin, Meyer

doi:10.1017/s0033822200037322

Cited by 31 publications

(11 citation statements)

References 22 publications

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“…1, Hedeen, 2008). The history of paleontological discoveries at the site dates back to the early 1700s (Schultz et al, 1963;Levin et al, 1965;Ives et al, 1967;Tankersley, 1990Tankersley, , 1996Tankersley, , 2002Hedeen, 2008). Yet, despite the historical and paleontological importance of BBL, comprehensive Quaternary research has not been previously conducted at this locality.…”

Section: Introductionmentioning

confidence: 99%

Quaternary chronostratigraphy and stable isotope paleoecology of Big Bone Lick, Kentucky, USA

et al. 2015

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Big Bone Lick (BBL) in northern Kentucky, USA has been a critical geologic site in the historical development of North American Quaternary vertebrate paleontology since the 1700s. Sedimentology, geoarcheology, paleontology, accelerator mass spectrometry radiocarbon and optically stimulated luminescence dating, and stable carbon and nitrogen isotope analyses were undertaken to develop a chronostratigraphy and history of erosion and deposition for the site to provide a foundation for understanding taphonomy, and species extinction and adaptation to periods of climatic and environmental change. Three geomorphic surfaces are recognized at BBL representing significant periods of floodplain aggradation since the last glacial maximum (26.5-19 ka) dating to the Oldest Dryas (Tazewell, 25-19 ka), the Older Dryas (Cary, 14-12 ka), and late Holocene (5 ka to the present). Unconformities suggest significant periods of degradation during the transitions from cold and dry to warm and moist climates from the Oldest Dryas (Tazewell) to Bølling Oscillation, from the Older Dryas (Cary) to the Allerød, and from the Younger Dryas (Valders) to the Holocene Climatic Optimum. Increased anthropogenic activities since~5 ka may have increased soil upland erosion and floodplain aggradation. Stable isotopes demonstrate that the landscape has been dominated by C 3 vegetation since the last glacial maximum.

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Section: Introductionmentioning

confidence: 99%

Quaternary chronostratigraphy and stable isotope paleoecology of Big Bone Lick, Kentucky, USA

et al. 2015

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“…Finally it should be mentioned that from previous and current work in the region a great number of datings younger than 10,000 years have been obtained (Washburn & Stuiver 1962;Trautman 1963;Levin et al 1965;Stuiver 1969;Lasca 1969;Tauber 1970;Funder 1971Funder , 1972aHikansson 1972).…”

Section: Mya Truncata Tridonta Borealismentioning

confidence: 95%

Aspects of the Weichselian chronology in central East Greenland

Hjort¹

1973

Boreas

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From central East Greenland, C14 ages between 19,500 > 40,000 years B.P. have been obtained for six samples of marine bivalve shells. The ages seem to be consistent with geological observations and form the basis for a tentative chronology for the Weichselian ice age in the region. It appears that the maximum glaciation during Weichselian times was attained more than 40,000 years ago, and that since then ice‐free areas have existed. This assumption agrees with evidence of botanical refugia in the region, and the restricted glacier activity especially during the Upper Pleniglacial (ca. 30,000–15,000 years B.P.) is explained by a reduced supply of moisture. A comparison with evidence from other parts of Greenland indicates that different glacial histories can be expected for different sectors of the Greenland Inland Ice.

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“…74, No. 3, 2009] (Levin et al 1965(Levin et al , 1967Tankersley 1986Tankersley , 1987Tankersley , 1992aTankersley , 1992b. Accelerator Mass Spectrometry (AMS) 14C dat ing enables smaller and chemically pure samples to be dated.…”

Section: Quaternary Stratigraphymentioning

confidence: 99%

Clovis and the American Mastodon at Big Bone Lick, Kentucky

Tankersley¹,

Waters²,

Stafford³

2009

Am. antiq.

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Contemporaneity of people and the American mastodon (Mammut americanum) at Big Bone Lick, Kentucky, has been extensively debated for more than two hundred years. Newly interpreted stratigraphic excavations and direct AMS ¹⁴C measurements on mastodon bones from Big Bone Lick, Kentucky, indicate that the megafauna are a palimpsest of fossils spanning at least 1,200 calendar years (11,020 ± 30 to 12,210 ± 35 RC yr B.P.). The radiocarbon evidence indicates that mastodons and Clovis people overlapped in time; however, other than one fossil with a possible cut mark and Clovis artifacts that are physically associated with but dispersed within the bone-bearing deposits, there is no incontrovertible evidence that humans hunted Mammut americanum at the site.

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U. S. Geological Survey Radiocarbon Dates VIII

Cited by 31 publications

References 22 publications

Quaternary chronostratigraphy and stable isotope paleoecology of Big Bone Lick, Kentucky, USA

Quaternary chronostratigraphy and stable isotope paleoecology of Big Bone Lick, Kentucky, USA

Aspects of the Weichselian chronology in central East Greenland

Clovis and the American Mastodon at Big Bone Lick, Kentucky

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