CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
Triple oxygen and hydrogen isotopes of gypsum hydration water for quantitative paleo-humidity reconstruction
Authors
T Bauska
A Delgado-Huertas
+8 more
F Gázquez
D Herwartz
DA Hodell
M Morellón
A Moreno
M Staubwasser
J Surma
B Valero-Garcés
Publication date
1 January 2018
Publisher
Earth and Planetary Science Letters
Doi
Cite
Abstract
© 2017 Elsevier B.V. Atmospheric relative humidity is an important parameter affecting vegetation yet paleo-humidity proxies are scarce and difficult to calibrate. Here we use triple oxygen (δ17O and δ18O) and hydrogen (δD) isotopes of structurally-bound gypsum hydration water (GHW) extracted from lacustrine gypsum to quantify past changes in atmospheric relative humidity. An evaporation isotope-mass-balance model is used together with Monte Carlo simulations to determine the range of climatological conditions that simultaneously satisfy the stable isotope results of GHW, and with statistically robust estimates of uncertainty. We apply this method to reconstruct the isotopic composition of paleo-waters of Lake Estanya (NE Spain) and changes in normalized atmospheric relative humidity (RHn) over the last glacial termination and Holocene (from ∼15 to 0.6 cal. kyrs BP). The isotopic record indicates the driest conditions occurred during the Younger Dryas (YD; ∼12–13 cal. kyrs BP). We estimate a RHnof ∼40–45% during the YD, which is ∼30–35% lower than today. Because of the southward displacement of the Polar Front to ∼42°N, it was both windier and drier during the YD than the Bølling–Allerød period and Holocene. Mean atmospheric moisture gradually increased from the Preboreal to Early Holocene (∼11 to 8 cal. kyrs BP, 50–60%), reaching 70–75% RHnfrom ∼7.5 cal. kyrs BP until present-day. We demonstrate that combining hydrogen and triple oxygen isotopes in GHW provides a powerful tool for quantitative estimates of past changes in relative humidity
Similar works
Full text
Open in the Core reader
Download PDF
Available Versions
Kölner UniversitätsPublikationsServer
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:USBKOELN.ub.uni-koeln.de:1...
Last time updated on 22/10/2020
University of St. Andrews - Pure
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:research-portal.st-andrews...
Last time updated on 29/01/2024
University of St. Andrews - Pure
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:research-portal.st-andrews...
Last time updated on 29/01/2024
Sustaining member
Apollo (Cambridge)
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:www.repository.cam.ac.uk:1...
Last time updated on 06/02/2018
Crossref
See this paper in CORE
Go to the repository landing page
Download from data provider
info:doi/10.1016%2Fj.epsl.2017...
Last time updated on 24/10/2020