tephrochronology


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tephrochronology

[¦tef·rō·krə′näl·ə·jē]
(geology)
The dating of different layers of volcanic ash for the establishment of a sequence of geologic and archeologic occurrences.
References in periodicals archive ?
800 by the use of tephrochronology (using layers of volcanic ash in the soil), before arguing that woodland clearance occurred at Seljaland during the early to mid-ninth century, more than a generation before the first Norse settlers arrived in the area.
Snowball presented an original talk about validating varve chronologies with independent complementary dating techniques (historically dated marker layers, palaeomagnetic secular variations, tephrochronology, atmospheric lead pollution isochrones and radiocarbon wiggle matching) to reduce chronological uncertainties.
This study expands the regional tephrochronology for the Kenai Peninsula of south-central Alaska by investigating the tephrostratigraphy of two peatland sites.
Research in the inland regions of New Britain has capitalised on an excellent volcanic tephrochronology that provides relative dating for buried deposits across a large region (e.
Samples for paleomagnetic analysis, sedimentary analysis, tephrochronology, and palynology were exported to the US for analysis.
5 kg sample was shipped to the United States Geological Survey (USGS) Tephrochronology Laboratory at Menlo Park, California.
The radiocarbon dating of several palaeochannels is problematic and, consequently, a relative chronology was established on the basis of the site tephrochronology.
Although now tephrochronology is used successfully in Quaternary geology and archaeology, identification of coeval ash beds in the Palaeozoic rocks appears to be more complicated.
Newnham RM, de Lange PJ, Lowe DJ (1995) Holocene vegetation, climate, and history of a raised bog complex, northern New Zealand, based on palynology, plant macrofossils, and tephrochronology.
Extending the Late Holocene Tephrochronology of the Central Kenai Peninsula, Alaska.
Kuk is the type-site for tephras in the highlands, and it is on the basis of the archaeological and palaeoecological investigations at this site that the tephrochronology for the highlands has been established.