نتایج جستجو برای: luminescence dating

تعداد نتایج: 27251  

Journal: :Quaternary Geochronology 2011

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Journal: :Radiation Measurements 2018

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Journal: :Geochronology 2021

Abstract. The success of luminescence dating as a chronological tool in Quaternary science builds upon innovative methodological approaches, providing new insights into past landscapes. Infrared radiofluorescence (IR-RF) on K-feldspar is such an method that was already introduced two decades ago. IR-RF promises considerable extended temporal range and simple measurement protocol, with more appl...

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Journal: :Quaternary Geochronology 2022

A significant feature of the surface sediments southeast Asia is a regionally extensive layer distinctive red, quartz-rich, cover sand observed throughout Vietnam, Cambodia, Laos and Thailand, further afield. In many locations, these sands immediately overlay laterite containing tektites, known as Muong Nong type, associated with large meteorite impact between 750 800ka in Indochina. Sections a...

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Journal: :Science 2007
Gary Haynes David G Anderson C Reid Ferring Stuart J Fiedel Donald K Grayson C Vance Haynes Vance T Holliday Bruce B Huckell Marcel Kornfeld David J Meltzer Julie Morrow Todd Surovell Nicole M Waguespack Peter Wigand Robert M Yohe

Waters and Stafford (Reports, 23 February 2007, p. 1122) provided useful information about the age of some Clovis sites but have not definitively established the temporal span of this cultural complex in the Americas. Only a continuing program of radiometric dating and careful stratigraphic correlations can address the lingering ambiguity about the emergence and spread of Clovis culture.

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Journal: :Turkish Journal of Earth Sciences 2023

While there has been significant research on the dating of paleoearthquakes using methods such as surface cosmogenic dating, and trench-based luminescence or radiocarbon this paper focuses implementing an alternative method a fault scarp-based optically stimulated (OSL) approach. Hence for first time, we investigated Pleistocene to Holocene earthquake cycle Manisa Fault, one dip-slip active fau...

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2017
C. Ankjærgaard B. Guralnik N. Porat A. Heimann M. Jain J. Wallinga

The method of quartz optically stimulated luminescence (OSL) dating is widely used, but generally limited to the past ~0.1 million years (Ma) due to early saturation of the desired signal. Violet stimulated luminescence (VSL) of quartz has previously been shown as a promising alternative, with a dose saturation level ~20 times higher compared to that of OSL, excellent thermal stability on the 1...

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2003
D.C.W. Sanderson P. Bishop M. T. Stark J. Q. Spencer

This paper presents a case study in the analysis of anthropogenically reset sedimentary materials, through work undertaken to identify and date sediments in an ancient canal in the Mekong Delta, Cambodia. The emergence of rice cultivating communities, utilising canals for both hydraulic management and transport, represents an important stage in the social evolution of southeast Asia. The emerge...

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Journal: :Quaternary Geochronology 2017

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Journal: :Journal of Human Evolution 2014

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