Homo erectus skull dating with cosmogenic nuclides in Denizli

Posted January 21, 2014 by masarikaya
Categories: Archeology, Geomorphology, Paleontology, Physical geography, Quaternary geology

Newly  obtained cosmogenic ages challenge our current knowledge of the Anatolian Homo erectus dispersal. A new discovery within a travertine quarry from Denizli was made by Cihat Alçiçek from Pamukkale University and his colloquies, Lebatard et al. (published in EPSL vol. 390). The burial ages determined on pebbles from conglomeratic levels framing travertine unit that bears the fossil. “The actual age of the fossils is likely to be in the 1.1–1.3 Ma range”, they report. This date is in close agreement with the paleoanthropological conclusions based on morphometric comparisons. The Turkish Homo erectus belongs to the Chinese and African fossil groups, and is different from Middle and Upper Pleistocene specimens. It attests to the antiquity of human occupation of the Anatolian Peninsula. please refer to http://dx.doi.org/10.1016/j.epsl.2013.12.031 for more information.

Screen shot 2014-01-21 at 11.55.58skull

Turkey’s latest energy report by US Energy Information Admin.

Posted February 4, 2013 by masarikaya
Categories: Uncategorized

“Turkey’s importance in the energy markets is growing, both as a regional energy transit hub and as a growing consumer. Turkey’s energy demand has increased rapidly over the last few years and likely will continue to grow in the future.” US Energy Information Admin. has published a report about Turkey energy report. You can reach the full text from http://www.eia.gov/countries/cab.cfm?fips=TUImage

Tephra deposits in the western Anatolia

Posted January 27, 2012 by masarikaya
Categories: Quaternary geology, Volcanology

Tags:

Source: geology.sdsu.edu

Kazancı et al. from Ankara University published a paper in Global and Planetary Change about a tephra deposits in the Çardak area of Denizli. Its formation time is between 5380 ± 90 and 2395 ± 65 yrs cal BP according to radiocarbon dating of two palaeosol layers within the colluvium. These discoveries showed that very strong volcanic eruption occurred in the Aegean Sea apart from the Santorini explosion. Please refer to http://dx.doi.org/10.1016/j.gloplacha.2011.09.007

 

Fossil elephants in Turkey

Posted January 27, 2012 by masarikaya
Categories: Paleontology, Quaternary geology

Tags: ,

Albayrak and Lister have been published a study in Quaternary International about the first detailed study of elephant remains from five localities. The radiocarbon dates indicate the ages to 3500 BP, the range of Asian elephant extended as far west as south-east Turkey. This interesting study can be found at http://dx.doi.org/10.1016/j.quaint.2011.05.042

Source: west-runton.ukfossils.co.uk

Sedimentary deposits in the Istanbul’s Byzantine harbour

Posted January 27, 2012 by masarikaya
Categories: Archeology, Environmental geology, Geological Engineering, Quaternary geology, Seismology

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Bony et al. published an interesting study in Quaternary International about a Byzantine harbour (Theodosian harbour) which has been uncovered during excavations in Istanbul. The stratigraphic sequence goes back to 7000 BP. In the marine part of the sedimentary sequence, the authors interpreted high-energy deposit as tsunami deposits and related to the earthquake of 557 AD. You can find more info at http://dx.doi.org/10.1016/j.quaint.2011.03.031.

Source: nautarch.tamu.edu

Late autumn–winter precipitation in northeast Turkey

Posted January 27, 2012 by masarikaya
Categories: Climate change, Hydrology, Meteorology, Physical geography, Uncategorized

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Jex et al. published a short paper in Quaternary Research about speleothem-derived reconstruction of late autumn–winter precipitation in Gümüşhane, northeast Turkey. The observation goes back to ~ AD 1500 leading to the first long winter precipitation reconstruction for this region. Please refer to http://dx.doi.org/10.1016/j.yqres.2011.01.005 for more information.

Source: Ansto

Remarkably extensive glaciation in Turkey near the Pleistocene-Holocene boundary

Posted December 26, 2011 by masarikaya
Categories: Climate change, Geomorphology, Glaciers of Turkey, Physical geography, Quaternary geology, Uncategorized

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A new paper was published in GSA’s Journal of Geology by Zreda and others in November 2011. This is their media paragraph published in the journal’s web site: “Looking at how climate changed in the geological past can provide a useful perspective for studying modern climate change and for predicting climate changes in the next century. Dr Marek Zreda of the University of Arizona and his colleagues used mountain moraines to reconstruct the former glaciers and to determine climatic changes in Turkey at the beginning of the Holocene, the current interglacial epoch. They found that the glaciers were unusually large for that time, with snow lines lower than today by more than 1400 meters, implying a temperature 9°C lower than modern long-term average temperature. The main glacier melting phase lasted 500 years during which the ice margin retreated at the average rate of 1700 m per century, which is higher than modern gracier retreat rates computed over comparable time. This corresponds to the temperature increase at the rate of 1.4°C per century, which exceeds the global warming trend of the past century, 0.6°C, showing that natural causes can lead to fast and large climate changes, and that the magnitude and the rate of climate change observed in the past century are not unprecedented.” Please see more details and the paper here doi:10.1130/G32097.1