TY  - JOUR
A1  - Menzel, Philip
A1  - Gaye, Birgit
A1  - Mishra, Praveen Kumar
A1  - Anoop, Ambili
A1  - Basavaiah, Nathani
A1  - Marwan, Norbert
A1  - Plessen, Birgit
A1  - Prasad, Sushma
A1  - Riedel, Nils
A1  - Stebich, Martina
A1  - Wiesner, Martin G.
T1  - Linking Holocene drying trends from Lonar Lake in monsoonal central India to North Atlantic cooling events
JF  - Palaeogeography, palaeoclimatology, palaeoecology : an international journal for the geo-sciences
N2  - We present the results of biogeochemical and mineralogical analyses on a sediment core that covers the Holocene sedimentation history of the climatically sensitive, closed, saline, and alkaline Lonar Lake in the core monsoon zone in central India. We compare our results of C/N ratios, stable carbon and nitrogen isotopes, grain-size, as well as amino acid derived degradation proxies with climatically sensitive proxies of other records from South Asia and the North Atlantic region. The comparison reveals some more or less contemporaneous climate shifts. At Lonar Lake, a general long term climate transition from wet conditions during the early Holocene to drier conditions during the late Holocene, delineating the insolation curve, can be reconstructed. In addition to the previously identified periods of prolonged drought during 4.6-3.9 and 2.0-0.6 cal ka that have been attributed to temperature changes in the Indo Pacific Warm Pool, several additional phases of shorter term climate alteration superimposed upon the general climate trend can be identified. These correlate with cold phases in the North Atlantic region. The most pronounced climate deteriorations indicated by our data occurred during 62-5.2,4.6-3.9, and 2.0-0.6 cal ka BP. The strong dry phase between 4.6 and 3.9 cal ka BP at Lonar Lake corroborates the hypothesis that severe climate deterioration contributed to the decline of the Indus Civilisation about 3.9 ka BP. (C) 2014 Elsevier B.V. All rights reserved.
KW  - Lake sediment
KW  - Indian monsoon
KW  - Holocene
KW  - Climate reconstruction
KW  - Stable carbon isotope
KW  - Amino acid
Y1  - 2014
U6  - https://doi.org/10.1016/j.palaeo.2014.05.044
SN  - 0031-0182
SN  - 1872-616X
VL  - 410
SP  - 164
EP  - 178
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Mishra, Praveen Kumar
A1  - Anoop, Ambili
A1  - Schettler, Georg
A1  - Prasad, Sushma
A1  - Jehangir, Arshid
A1  - Menzel, Peter
A1  - Naumann, Rudolf
A1  - Yousuf, A. R.
A1  - Basavaiah, Nathani
A1  - Deenadayalan, Kannan
A1  - Wiesner, Martin G.
A1  - Gaye, Birgit
T1  - Reconstructed late Quaternary hydrological changes from Lake Tso Moriri, NW Himalaya
JF  - Quaternary international : the journal of the International Union for Quaternary Research
N2  - We present the results of our investigations on the radiocarbon dated core sediments from the Lake Tso Moriri, NW Himalaya aimed at reconstructing palaeohydrological changes in this climatically sensitive region. Based on the detailed geochemical, mineralogical and sedimentological analysis, we recognise several short-term fluctuations superimposed upon seven major palaeohydrological stages identified in this lake since similar to 26 cal ka. Stage I (>20.2 cal ka): shallow lake characterised by input of coarse-grained detrital sediments; Stage II (20.2-16.4 cal ka): lake deepening and intensification of this trend ca. 18 cal ka; Stage III (16.4-11.2 cal ka): rising lake levels with a short term wet phase (13.1-11.7 cal ka); Stage IV (11.2-8.5 cal ka): early Holocene hydrological maxima and highest lake levels inferred to have resulted from early Holocene Indian monsoon intensification, as records from central Asia indicate weaker westerlies during this interval; Stage V (8.5-5.5 cal ka): mid-Holocene climate deterioration; Stage VI (5.5-2.7 cal ka): progressive lowering of lake level; Stage VII (2.7-0 cal ka): onset of modern conditions. The reconstructed hydrological variability in Lake Tso Moriri is governed by temperature changes (meltwater inflow) and monsoon precipitation (increased runoff). A regional comparison shows considerable differences with other palaeorecords from peninsular India during late Holocene. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
KW  - Authigenic carbonates
KW  - Holocene
KW  - Indian summer monsoon
KW  - Lake sediments
KW  - Tso Moriri Lake
KW  - Westerlies
Y1  - 2015
U6  - https://doi.org/10.1016/j.quaint.2014.11.040
SN  - 1040-6182
SN  - 1873-4553
VL  - 371
SP  - 76
EP  - 86
PB  - Elsevier
CY  - Oxford
ER  -