Age determinations in Lena Delta
The age correlation between the three main geomorphological terraces in the Lena Delta, especially that of the second sandy terrace (Arga Island) and the third terrace (Ice Complex and underlying sands) is still being discussed, Knowledge about the age of the lee Complex and its underlying sands, an...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.758210 2023-05-15T17:07:30+02:00 Age determinations in Lena Delta Krbetschek, Matthias R Gonser, Gabriele Schwamborn, Georg MEDIAN LATITUDE: 72.781692 * MEDIAN LONGITUDE: 124.533150 * SOUTH-BOUND LATITUDE: 72.369980 * WEST-BOUND LONGITUDE: 122.769000 * NORTH-BOUND LATITUDE: 73.318900 * EAST-BOUND LONGITUDE: 126.114800 * DATE/TIME START: 1998-08-10T00:00:00 * DATE/TIME END: 1998-08-10T00:00:00 2002-03-10 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.758210 https://doi.org/10.1594/PANGAEA.758210 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.758210 https://doi.org/10.1594/PANGAEA.758210 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Krbetschek, Matthias R; Gonser, Gabriele; Schwamborn, Georg (2002): Luminescence dating results of sediment sequences of the Lena Delta. Polarforschung, 70, 83-88, hdl:10013/epic.29860.d001 Arga base of ice complex Geological profile sampling GEOPRO Kurungnakh Lena Delta Siberia Russia Nagym Olenyok Dataset 2002 ftpangaea https://doi.org/10.1594/PANGAEA.758210 2023-01-20T07:32:06Z The age correlation between the three main geomorphological terraces in the Lena Delta, especially that of the second sandy terrace (Arga Island) and the third terrace (Ice Complex and underlying sands) is still being discussed, Knowledge about the age of the lee Complex and its underlying sands, and the Arga sands is necessary for understanding the past and modern structure of the delta. Geochronometrie data have been acguired for three sediment seguences from the Lena Delta by lumineseence dating using the potassium feldspar IR-OSL technique. Additionally, 14C dates are available for geochronological discussion. Typical sediments of the upper part of Arga Island as found in the area of Lake Nikolay are of Late Pleistoeene age (14.5-10.9 ka), Typical third terrace sediments from two seguenees located at the Olenyokskaya branch are older. At the profile "Nagym" sandy seguences were most probably deposited between about 65 ka and 50 ka before present. The lower part of the sandy seguence at "Kurungnakh Island" is possibly older than the sediments of the section at Nagym. However, methodological difficulties in luminescence dating (insufficient bleaching at the time of deposition) and younger 14C dates make the discussion of the results difficult. Dataset lena delta Polarforschung Siberia PANGAEA - Data Publisher for Earth & Environmental Science Arga ENVELOPE(149.783,149.783,66.500,66.500) Nagym ENVELOPE(123.324,123.324,72.880,72.880) Nikolay ENVELOPE(140.000,140.000,71.617,71.617) Olenyok ENVELOPE(112.449,112.449,68.505,68.505) ENVELOPE(122.769000,126.114800,73.318900,72.369980) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arga base of ice complex Geological profile sampling GEOPRO Kurungnakh Lena Delta Siberia Russia Nagym Olenyok |
spellingShingle |
Arga base of ice complex Geological profile sampling GEOPRO Kurungnakh Lena Delta Siberia Russia Nagym Olenyok Krbetschek, Matthias R Gonser, Gabriele Schwamborn, Georg Age determinations in Lena Delta |
topic_facet |
Arga base of ice complex Geological profile sampling GEOPRO Kurungnakh Lena Delta Siberia Russia Nagym Olenyok |
description |
The age correlation between the three main geomorphological terraces in the Lena Delta, especially that of the second sandy terrace (Arga Island) and the third terrace (Ice Complex and underlying sands) is still being discussed, Knowledge about the age of the lee Complex and its underlying sands, and the Arga sands is necessary for understanding the past and modern structure of the delta. Geochronometrie data have been acguired for three sediment seguences from the Lena Delta by lumineseence dating using the potassium feldspar IR-OSL technique. Additionally, 14C dates are available for geochronological discussion. Typical sediments of the upper part of Arga Island as found in the area of Lake Nikolay are of Late Pleistoeene age (14.5-10.9 ka), Typical third terrace sediments from two seguenees located at the Olenyokskaya branch are older. At the profile "Nagym" sandy seguences were most probably deposited between about 65 ka and 50 ka before present. The lower part of the sandy seguence at "Kurungnakh Island" is possibly older than the sediments of the section at Nagym. However, methodological difficulties in luminescence dating (insufficient bleaching at the time of deposition) and younger 14C dates make the discussion of the results difficult. |
format |
Dataset |
author |
Krbetschek, Matthias R Gonser, Gabriele Schwamborn, Georg |
author_facet |
Krbetschek, Matthias R Gonser, Gabriele Schwamborn, Georg |
author_sort |
Krbetschek, Matthias R |
title |
Age determinations in Lena Delta |
title_short |
Age determinations in Lena Delta |
title_full |
Age determinations in Lena Delta |
title_fullStr |
Age determinations in Lena Delta |
title_full_unstemmed |
Age determinations in Lena Delta |
title_sort |
age determinations in lena delta |
publisher |
PANGAEA |
publishDate |
2002 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.758210 https://doi.org/10.1594/PANGAEA.758210 |
op_coverage |
MEDIAN LATITUDE: 72.781692 * MEDIAN LONGITUDE: 124.533150 * SOUTH-BOUND LATITUDE: 72.369980 * WEST-BOUND LONGITUDE: 122.769000 * NORTH-BOUND LATITUDE: 73.318900 * EAST-BOUND LONGITUDE: 126.114800 * DATE/TIME START: 1998-08-10T00:00:00 * DATE/TIME END: 1998-08-10T00:00:00 |
long_lat |
ENVELOPE(149.783,149.783,66.500,66.500) ENVELOPE(123.324,123.324,72.880,72.880) ENVELOPE(140.000,140.000,71.617,71.617) ENVELOPE(112.449,112.449,68.505,68.505) ENVELOPE(122.769000,126.114800,73.318900,72.369980) |
geographic |
Arga Nagym Nikolay Olenyok |
geographic_facet |
Arga Nagym Nikolay Olenyok |
genre |
lena delta Polarforschung Siberia |
genre_facet |
lena delta Polarforschung Siberia |
op_source |
Supplement to: Krbetschek, Matthias R; Gonser, Gabriele; Schwamborn, Georg (2002): Luminescence dating results of sediment sequences of the Lena Delta. Polarforschung, 70, 83-88, hdl:10013/epic.29860.d001 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.758210 https://doi.org/10.1594/PANGAEA.758210 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.758210 |
_version_ |
1766062936757895168 |