Results 61 to 70 of about 1,259,928 (152)

Oxygen isotopic paleotemperatures across the Runangan—Whaingaroan (Eocene—Oligocene) boundary in a New Zealand shelf sequence [PDF]

open access: yes, 1981
Oxygen isotopic compositions of the tests of mainly benthic foraminifera, from sections of conformable Late Eocene (Runangan) to Early Oligocene (Whaingaroan) shelf mudstones, at both Cape Foulwind and Port Elizabeth, western South Island, indicate. that
Nelson, Campbell S., Burns, David A.
core   +1 more source

Stable isotopes in diatom silica [PDF]

open access: yes, 2010
Diatom silica is a form of biogenic opal (SiO2.nH2O, Figure 1) containing oxygen, silicon, carbon and nitrogen isotopes that can be used in lacustrine and marine paleoenvironmental studies.
Leng, Melanie J., Swann, George E.A.
core   +3 more sources

δ18O water isotope in the iLOVECLIM model (version 1.0) – Part 3: A palaeo-perspective based on present-day data–model comparison for oxygen stable isotopes in carbonates [PDF]

open access: yesGeoscientific Model Development, 2013
Oxygen stable isotopes (δ18O) are among the most useful tools in palaeoclimatology/palaeoceanography. Simulation of oxygen stable isotopes allows testing how the past variability of these isotopes in water can be interpreted.
T. Caley, D. M. Roche
doaj   +1 more source

Water isotopic and hydrochemical characteristics and causality in Tajikistan

open access: yesShui kexue jinzhan, 2013
Main ions and hydrogen,oxygen isotopes were measured in samples of lake water,river water and spring water,which were collected from various locations of the Tajikistan region during the period from September through October 2011.The spatially ...
CENG Haiao, WU Jinglu
doaj   +1 more source

Reinterpreting Precipitation Stable Water Isotope Variability in the Andean Western Cordillera Due To Sub‐Seasonal Moisture Source Changes and Sub‐Cloud Evaporation

open access: yesGeophysical Research Letters, 2022
Precipitation in the arid Central Andean Western Cordillera is strongly sensitive to large‐scale atmospheric circulation patterns which transport moisture from different source regions.
Lisa R. Welp   +7 more
doaj   +1 more source

Links Between Carbon and Water Cycles in Northern Ecosystems: Constraints from Stable Isotopes [PDF]

open access: yes, 2006
High-latitude climate change will have an impact on the carbon and water cycles in northern ecosystems. Stable isotopes in these systems can serve as indicators of changes and feedbacks.
Welp, Lisa Renee
core   +1 more source

A TALE OF TWO CITIES: DIET, HEALTH AND MIGRATION IN POST-MEDIEVAL COVENTRY AND CHELSEA THROUGH BIOGRAPHICAL RECONSTRUCTION, OSTEOARCHAEOLOGY AND ISOTOPE BIOGEOCHEMISTRY [PDF]

open access: yes, 2006
Biogeochemical research has over the past four-and-a-half decades improved our understanding of human interaction with past environments. The application of different isotope systems has allowed archaeologists to interpret ancient diet, migration and ...
Trickett, Mark Anthony
core  

Seawater oxygen isotopes for Station POS334-73, Alboran Sea

open access: yes, 2017
Seawater oxygen isotopes for Station POS334-73, Alboran ...
Voelker, Antje H L   +1 more
core   +1 more source

Ancient Modeling of Hydrology Based on Comparison of δo18 Carbonate and the δo13 Crbonate Parishan Lake (Fars Province) Dariush Noorollahi M.Sc Climatology University of Shahid Beheshti Dr. Hassan Lashkari Associate Profesor of Natural Geography University of Shahid Beheshti Maria Amirzade Faculty of Earth science University of Shahid Beheshti [PDF]

open access: yesجغرافیا و توسعه, 2012
Geography and Development 10nd Year - No. 29 - Winter 2013 Received : 31/1/2012   Accepted : 17/7/2012 PP: 28 - 31   Ancient Modeling of Hydrology Based on Comparison of δo18 Carbonate and the δo13 Crbonate Parishan Lake (Fars Province)   Dariush ...
doaj   +1 more source

Seawater oxygen isotopes as a tool for monitoring future meltwater from the Antarctic ice-sheet

open access: yesCommunications Earth & Environment
To reduce uncertainties in future sea level projections, it is necessary to closely monitor the evolution of the Antarctic ice-sheet. Here, we show that seawater oxygen isotopes are an effective tool to monitor ice-sheet freshwater discharge and its ...
Hyuna Kim, Axel Timmermann
doaj   +1 more source

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