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

Past Climatic Changes Using Cave Structures

  • Anoop Kumar Singh

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xv
  2. Anoop Kumar Singh
    Pages 1-20
  3. Anoop Kumar Singh
    Pages 21-37
  4. Anoop Kumar Singh
    Pages 39-52
  5. Anoop Kumar Singh
    Pages 53-83
  6. Anoop Kumar Singh
    Pages 85-102
  7. Back Matter
    Pages 103-146

About this book

Introduction

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 δ18O and δ13C 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 between 3.2 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.

Keywords

Indian Himalaya Indian Summer Monsoon (ISM) Westerlies Speleothems Variation in δ18O and δ13C Isotopes U/Th Ages and StalAge Age/Depth Model Older Dryas (OD) Bølling-Allerød (BA) Younger Dryas (YD) Little Ice Age (LIA) Indus-Harappan Civilization

Authors and affiliations

  • Anoop Kumar Singh
    • 1
  1. 1.Centre of Advanced Study (CAS) in GeologyKumaun UniversityNainitalIndia

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-73597-9
  • Copyright Information Springer International Publishing AG 2018
  • Publisher Name Springer, Cham
  • eBook Packages Earth and Environmental Science
  • Print ISBN 978-3-319-73596-2
  • Online ISBN 978-3-319-73597-9
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site