High Resolution Palaeoclimatic Changes in Selected Sectors of the Indian Himalaya by Using Speleothems

Past Climatic Changes Using Cave Structures
1. Auflage 2018
ISBN: 978-3-319-73596-2
Verlag: Springer International Publishing

Buch, Englisch, 146 Seiten, HC runder Rücken kaschiert, Format (B × H): 160 mm x 241 mm, Gewicht: 418 g

Reihe: Springer Theses

This thesis encompasses a study of past precipitation patterns based on six cave stalagmites from different parts of the Indian Himalaya. This is the first speleothem study in the Indian Himalaya that shows a direct relationship between past precipitation and the collapse of civilization. The stalagmites examined were KL-3 from Jammu and Kashmir; TCS and BR-1 from Himachal Pradesh; and DH-1, SA-1 and CH-1 from Uttarakhand. Based on the high-resolution palaeoclimatic reconstruction (35 U/th dates, 5 AMS dates, 1,500 samples for d18O and d13C values) obtained for the duration of the Pleistocene–Holocene transition (16.2–9.5 ka BP) and Mid-Holocene–Present (ca. 4.0 ka BP–Present), three major events were identified, namely the Older Dryas (OD), Bølling–Allerød (BA) period and Younger Dryas (YD) at ca. 14.3–13.9, 13.9–12.7 and 12.7–12.2 ka BP, respectively. The study showed a gradual reduction in the precipitation from 4 ka BP onwards for about a millennium with a peak arid period between3.2 and 3.1 ka BP. According to the findings, the LIA (Little Ice Age) covers a time span from 1622–1820 AD, during which the climate was wetter than that in the post-LIA period (1820–1950 AD). In addition, this thesis supports the assumption that the WDs (Western Disturbances) contribute significantly to the total rainfall in the Himalaya region.

Zielgruppe

Research

Autoren/Hrsg.

Singh, Anoop Kumar

Fachgebiete

• Geowissenschaften Geologie Bodenkunde, Sedimentologie
• Geowissenschaften Geologie Paläontologie, Taphonomie
• Geowissenschaften Geologie Hydrologie, Hydrogeologie
• Geowissenschaften Geologie Meteorologie, Klimatologie

Inhaltsverzeichnis

Introduction.- Speleothems and Climate.- Studied Speleothems and Methodology.- RESULTS.- Summary and Conclusion.

Über Autor(innen)

Anoop Kumar Singh obtained M.Sc. and Ph.D. degrees in Geology from Kumaun University Nainital, Uttarakhand India. He has published nine research papers in peer-reviewed international journals and has earned over 15 impact points.