Outburst floods of the Maly Yenisei. Part II – new age constraints from Darhad basin

ABSTRACT Some of the largest cataclysmic floods of the Quaternary followed multiple breaches of glaciers damming the headwaters of the Maly Yenisei river in southern Siberia. The shorelines of the impounded lake in Darhad basin suggest at least four depths of 290, 175, 145, and 65 m. Fossil evidence, together with previous 14C and luminescence dating, indicates the existence of a deep lake during MIS 3; the eroded character of the highest shoreline suggests that the deepest lake was older. 10Be dating of moraines in the surrounding mountains has documented major glacial advances during MIS 2, although no published direct dating has confirmed a highstand of the lake then. To address this problem, we extracted lake sediments from a 92.6 m deep borehole, sampled beach sands from the nearby basin edge, and dated them both using luminescence methods. We also dated, with 10Be, the eroded remnants of the end moraine deposited by the last glacier that dammed Darhad basin, as well as other moraines in the mountains surrounding the basin. These numerical ages confirm that a deep lake existed in Darhad basin at ~20 ka and that a large glacier crossed the Maly Yenisei and dammed Darhad basin at ~21 ka. The deep lake persisted episodically until ~14 ka. The 10Be dating in the surrounding mountains shows that the MIS 2 glaciers subsequently retreated but stalled or re-advanced at ~12, 10, and 1.5 ka. 10Be dating from the central massif of Mongolia is consistent with this chronology and confirms that MIS 3 equilibrium-line altitudes were slightly (~75 m) lower or approximately the same as those of the MIS 2. The temporal and spatial patterns of glacial advances in southern Siberia and central Mongolia coincided with those of glacial advances in similar climate conditions of the Altai mountains.

[1]  M. Ishikawa,et al.  Formation Chronology of Arsain Pingo, Darhad Basin, Northern Mongolia , 2016 .

[2]  J. Stone,et al.  A complete and easily accessible means of calculating surface exposure ages or erosion rates from 10Be and 26Al measurements , 2008 .

[3]  J. Protze,et al.  Holocene geomorphological processes and soil development as indicator for environmental change aroun , 2011 .

[4]  M. Edlund,et al.  The planktonic diatom diversity of ancient Lake Hovsgol, Mongolia , 2003 .

[5]  Koji Fujita,et al.  Climate regime of Asian glaciers revealed by GAMDAM glacier inventory , 2014 .

[6]  I. B. Fridleifsson,et al.  The possible role and contribution of geothermal energy to the mitigation of climate change , 2008 .

[7]  P. Molnar,et al.  ASYNCHRONOUS MAXIMUM ADVANCES OF MOUNTAIN AND CONTINENTAL GLACIERS , 1995 .

[8]  J. Andrews,et al.  Glacial Systems: An Approach to Glaciers and Their Environments , 1975 .

[9]  C. Buck,et al.  IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 Years cal BP , 2013, Radiocarbon.

[10]  J. Putkonen,et al.  Accuracy of cosmogenic ages for moraines☆ , 2003, Quaternary Research.

[11]  S. Krivonogov,et al.  Stages in the development of the Darhad dammed lake (Northern Mongolia) during the Late Pleistocene and Holocene , 2005 .

[12]  L. Hoffmann,et al.  Analysis of the type of Fragilaria construens var. subsalina (Bacillariophyceae) and description of two morphologically related taxa from Europe and the United States , 2011 .

[13]  Tae Sup Yun,et al.  Thermal conductivity of hydrate‐bearing sediments , 2009 .

[14]  C. Clauser,et al.  Thermal Conductivity of Rocks and Minerals , 2013 .

[15]  Vadim A. Kravchinsky,et al.  A rock-magnetic record from Lake Baikal, Siberia: Evidence for Late Quaternary climate change , 1994 .

[16]  Z. Jacobsa,et al.  Interpretation of single grain De distributions and calculation of De , 2005 .

[17]  S. Rupper,et al.  Spatial patterns in Central Asian climate and equilibrium line altitudes , 2010 .

[18]  V. Baker,et al.  Quaternary paleolake formation and cataclysmic flooding along the upper Yenisei River , 2009 .

[19]  Geoffrey O. Seltzer,et al.  Comparing reconstructed Pleistocene equilibrium‐line altitudes in the tropical Andes of central Peru , 2005 .

[20]  G. Komatsu,et al.  Late Pleistocene glaciers in Darhad Basin, northern Mongolia , 2008, Quaternary Research.

[21]  A. Murray,et al.  Testing optically stimulated luminescence dating of sand-sized quartz and feldspar from fluvial deposits , 2001 .

[22]  S. C. Porter,et al.  Equilibrium-line Altitudes of Late Quaternary Glaciers in the Southern Alps, New Zealand , 1975, Quaternary Research.

[23]  P. Jones,et al.  Updated high‐resolution grids of monthly climatic observations – the CRU TS3.10 Dataset , 2014 .

[24]  A. Murray,et al.  A review of quartz optically stimulated luminescence characteristics and their relevance in single-aliquot regeneration dating protocols , 2006 .

[25]  Rex Galbraith,et al.  Statistical aspects of equivalent dose and error calculation and display in OSL dating: An overview and some recommendations , 2012 .

[26]  I. Wright,et al.  Late quaternary tephra layers around Raoul and Macauley islands, Kermadec arc: implications for volcanic sources, explosive volcanism and tephrochronology , 2011 .

[27]  A. Chauvet,et al.  History of late Pleistocene glaciations in the central Sayan-Tuva Upland (southern Siberia) , 2012 .

[28]  J. Stone.  Air pressure and cosmogenic isotope production , 2000 .

[29]  G. Manley.  The late‐glacial climate of North‐West England , 1961 .

[30]  M. Stuiver,et al.  Discussion: Reporting of 14 C Data , 1977 .

[31]  S. C. Porter.  Snowline depression in the tropics during the Last Glaciation , 2000 .

[32]  F. Lehmkuhl,et al.  OSL dating of sediments from the Gobi Desert, Southern Mongolia , 2010 .

[33]  F. Riedel,et al.  Last glacial-interglacial vegetation and environmental dynamics in southern Siberia: chronology, forcing and feedbacks. , 2010 .

[34]  A. Murray,et al.  Equivalent dose estimation using a single aliquot of polymineral fine grains , 2001 .

[35]  M. Raymo,et al.  A Pliocene‐Pleistocene stack of 57 globally distributed benthic δ18O records , 2005 .

[36]  Jim E. O'Connor,et al.  The World's Largest Floods, Past and Present: Their Causes and Magnitudes , 2004 .

[37]  K. Kashiwaya,et al.  Solved and unsolved problems of sedimentation, glaciation and paleolakes of the Darhad Basin, Northern Mongolia , 2012 .

[38]  G. Tucker,et al.  Statistical treatment of fluvial dose distributions from southern Colorado arroyo deposits , 2007 .

[39]  Summer Rupper,et al.  Glacier Changes and Regional Climate: A Mass and Energy Balance Approach* , 2008 .

[40]  David A. Seal,et al.  The Shuttle Radar Topography Mission , 2007 .

[41]  F. E. Round,et al.  Four new genera based on Achnanthes (Achnanthidium) together with a re-definition of Achnanthidium , 1996 .

[42]  F. Nelson,et al.  Permafrost monitoring in the Hovsgol mountain region, Mongolia , 2007 .

[43]  J. Heyman.  Paleoglaciation of the Tibetan Plateau and surrounding mountains based on exposure ages and ELA depression estimates , 2014 .

[44]  Z. Jacobs,et al.  Interpretation of single grain D-e distributions and calculation of D-e , 2006 .

[45]  M. Lamothe,et al.  Ubiquity of anomalous fading in K-feldspars and the measurement and correction for it in optical dating , 2001 .

[46]  A. Nesje,et al.  Modern and Little Ice Age equilibrium-line altitudes on Outlet Valley glaciers from Jostedalsbreen, western Norway: An evaluation of different approaches to their calculation , 1993 .

[47]  A. Roberts,et al.  Environmental magnetism: Past, present, and future , 1995 .

[48]  Rex Galbraith,et al.  Graphical display of estimates having differing standard errors , 1988 .

[49]  A. Gillespie,et al.  Spatial patterns of Holocene glacier advance and retreat in Central Asia , 2009, Quaternary Research.

[50]  M. Chithambo,et al.  Application of pulsed OSL to polymineral fine-grained samples , 2012 .

[51]  S. Huot,et al.  Measurement of anomalous fading for feldspar IRSL using SAR , 2003 .

[52]  M. Böse,et al.  Optically stimulated luminescence dating of fluvioglacial (sandur) sediments from north-eastern Germany , 2010 .

[53]  P. Reimer,et al.  Extended 14C Data Base and Revised CALIB 3.0 14C Age Calibration Program , 1993, Radiocarbon: An International Journal of Cosmogenic Isotope Research.

[54]  Paul F. Green,et al.  Estimating the component ages in a finite mixture , 1990 .

[55]  B. Hallet,et al.  Surface Dating of Dynamic Landforms: Young Boulders on Aging Moraines , 1994, Science.

[56]  A. Gillespie,et al.  Outburst floods of the Maly Yenisei. Part I , 2016 .

[57]  A. Murray,et al.  Age limit and age underestimation using different OSL signals from lacustrine quartz and polymineral fine grains , 2003 .

[58]  M. Grosswald,et al.  Quaternary glacier‐dammed lakes in the mountains of Siberia , 1996 .

[59]  Hugh L. Dryden,et al.  THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION , 1958 .

[60]  F. Lehmkuhl,et al.  Surface exposure dating reveals MIS-3 glacial maximum in the Khangai Mountains of Mongolia , 2014, Quaternary Research.

[61]  T. Meierding,et al.  Late Pleistocene Glacial Equilibrium-Line Altitudes in the Colorado Front Range: A Comparison of Methods , 1982, Quaternary Research.