Results 31 to 40 of about 58,241 (215)
Geologic quadrangle map no. 47 [PDF]
, 1978 Process Steps: 1. Either: a) a Portable Document Format (PDF) version of the map provided the Bureau of Economic Geology, University of Texas at Austin was converted from pdf to Tagged Image File Format (TIFF) or b) a paper map was scanned and saved in ...
Barnes, Virgil E. (Virgil Everett), 1903-1998
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International Journal of Osteoarchaeology, EarlyView.ABSTRACT Sharp force trauma (SFT) is the main criterion used to identify chop mark butchery in zooarchaeology, yet its reliability as a diagnostic feature has not been systematically tested. Chop marks reflect both cutting and fracturing processes and exhibit characteristics of both sharp and blunt trauma.
Tiffany Okaluk +4 more
wiley +1 more source
Global Chert Database: A summary record of global chert samples
Geoscience Data JournalChert is a sedimentary rock abundant and conspicuous throughout the geologic record. It serves as an essential geological archive and is vital for palaeogeographic reconstruction. The Chert Database Working Group is part of the OneSediment Working Groups
Chenyu Wang +5 more
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Journal of Lithic Studies, 2020 The widespread presence of raw materials suitable for the production of stone tools on the south-eastern part of La Désirade, a small island east of Guadeloupe (French West Indies), is an interesting feature as these materials cannot be obtained on most ...
Maaike de Waal, Sebastiaan Knippenberg
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Paleolithic and mesolithic finds from profile of the Zemun loess [PDF]
Starinar, 2008 Segment of the material from these two sites was published already in 1984 Owing to circumstances two new Paleolithic sites discovered in the territory of Serbia in recent times have made possible placing of the finds from the sites 'Ekonomija 13 maj ...
Šarić Josip
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Textural and Lithologic Differences of Cretaceous, Tertiary, and Quaternary Gravels of South Arkansas [PDF]
, 1987 Stream gravels have been derived from the Ouachita Mountains since at least Cretaceous times. Past studies have assigned ages to gravel deposits in the basins of the Saline and Little Missouri Rivers on the basis of altitude above local floodplains. This
Wood, Lesli
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Earth-atmosphere evolution based on the new determination of Devonian atmosphere Ar isotopic composition [PDF]
The isotopic composition of the noble gases, in particular Ar, in samples of ancient atmosphere trapped in rocks and minerals provides the strongest constraints on the timing and rate of Earth atmosphere formation by degassing of the Earth's interior. We
Gandanger, Pierre +3 more
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Faulting patterns in the Lower Yarmouk Gorge potentially influence groundwater flow paths [PDF]
, 2019 Recent studies investigating groundwater parameters, e.g., heads, chemical composition, and heat transfer, argued that groundwater flow paths in the Lower Yarmouk Gorge (LYG) area are controlled by geological features such as faults or dikes.
Alraggad, Marwan +7 more
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Journal of the Royal Anthropological Institute, EarlyView.Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton +3 more
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The Pine Saddle site (3PL1080) in the Ouachita Mountains, Polk County, Arkansas [PDF]
, 2005 Novaculite was procured and knapped by aboriginal Indian populations living in southwestern Arkansas for thousands of years, and there are numerous prehistoric novaculite quarries in the Ouachita Mountains. In Late Archaic times.
Nelson, Bo, Perttula, Timothy K.
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