Erosional history of the Himalayan and Burman ranges during the last two glacial–interglacial cycles

Internal structure of event layers preserved on the Andaman Sea continental shelf, Thailand: tsunami vs. storm and flash-flood deposits

“…1). The Ayeyarwady-Salween river system is the main source supplying fine-grained sediment into the Andaman Sea (Rodolfo, 1969;Colin et al, 1999), which is highly seasonal with more than 80 % of the annual discharging during the SW monsoon (Ramaswamy et al, 2004). The majority of the Andaman shelf is classified as sediment starved (Rodolfo, 1969;Panchang et al, 2008;Schwab et al, 2012).…”

Inherent correlation between decreased marine sedimentary phosphorus and glacial atmospheric CO2 decline

“…To verify this alignment, we further determined the acetic acid-soluble Mg content ( Figure 2e) along Column SZ2 and aligned it to the d 18 O phases ( Figure 2a). Previous studies have shown that d 18 O phase 2 is associated with increased Mg content in sediments which is mainly caused by increased dissolution of chlorite during the glacial [Thamban et al, 2002;Colin et al, 1999]. The vertical Mg distribution in Column SZ2 shows a negative correlation with d 18 O in Column 17940, and the Mg content rose substantially corresponding to d 18 O phase 2, indicating that the alignment of TP and CaCO 3 data from Column SZ2 to d 18 O phases is reasonable.…”

Climate induced temporal change in Sr-Nd isotope ratios in the valley-fill deposits of the Ganga river

“…We also compared Sr and Nd isotopic composition of the Firozpur core sediments with the existing records generated from the Bay of Bengal (France-Lanord et al, 1993;Galy et al, 2008Galy et al, , 2010Colin et al, 1999Colin et al, , 2006 and the Ganga Plain sediments (Rahaman et al, 2009;Agrawal et al, 2013a). France-Lanord et al (1993) investigated variations in the Sr and Nd isotopic ratios in a sediment core from the Bay of Bengal spanning 17 Ma time period and showed that the dominant source of these sediments is the Higher Himalayan Crystallines with lesser contribution from the LH.…”

“…It confirms the stable erosion regime of the Himalaya during millennium and millennial time scale. Colin et al (1999Colin et al ( , 2006 used Sr and Nd isotope composition of sediment core collected from the Bay of Bengal and the Andaman Sea to identify the sources of sediments. On the basis of Sr and Nd isotope Coiln et al (1999Coiln et al ( , 2006 suggested that these basins receive sediments from multiple sources.…”

“…The sediments of the Bay of Bengal have been studied to understand past Himalayan erosion history and their causative factors in million as well as millennial scale (France-Lanord et al, 1993;Colin et al, 1999;PiersonWickmann et al, 2001;Ahmad et al, 2005;Galy et al, 2010). Such studies suggest that the sediments derived from the Higher Himalaya (HH) and Lesser Himalaya (LH) has varied with time under the influence of climate and tectonics.…”