Results 101 to 110 of about 25,230 (195)

Tree-ring δ18O and δ2H stable isotopes reflect the global meteoric water line

Frontiers in Earth Science
IntroductionThe Global Meteoric Water Line (GMWL) describes the linear relationship between stable hydrogen (δ2H) and oxygen (δ18O) isotopes in precipitation over large spatial scales and therefore represents a unique reference for water isotopic values.
Tito Arosio, Ulf Büntgen, Ulf Büntgen, Ulf Büntgen, Kurt Nicolussi, Gina E. Moseley, Matthias Saurer, Thomas Pichler, M. Paul Smith, Emilia Gutierrez, Laia Andreu-Hayles, Laia Andreu-Hayles, Laia Andreu-Hayles, Irka Hajdas, Tatiana Bebchuk, Markus Leuenberger, Markus Leuenberger   +16 more
doaj   +1 more source

Transformation of ENSO‐related rainwater to dripwater δ18O variability by vadose water mixing [PDF]

, 2014
Speleothem oxygen isotopes (δ18O) are often used to reconstruct past rainfall δ18O variability, and thereby hydroclimate changes, in many regions of the world.
Stacy A, Carolin, Brian, Clark, Jessica W, Moerman, Syria, Lejau, Judson W, Partin, A Nele, Meckler, Andrew Alek, Tuen, Kim M, Cobb, Jess F, Adkins, Jenny, Malang   +9 more
core   +1 more source

Concurrent Measurement of O2 Production and Isoprene Emission During Photosynthesis: Pros, Cons and Metabolic Implications of Responses to Light, CO2 and Temperature

Plant, Cell &Environment, EarlyView.
ABSTRACT Traditional leaf gas exchange experiments have focused on net CO2 exchange (Anet). Here, using California poplar (Populus trichocarpa), we coupled measurements of net oxygen production (NOP), isoprene emissions and δ18O in O2 to traditional CO2/H2O gas exchange with chlorophyll fluorescence, and measured light, CO2 and temperature response ...
Kolby Jeremiah Jardine, Suman Som, Luiza Beraldi Gallo, Jilian Demus, Tomas Ferreira Domingues, Christina Marie Wistrom, Lianhong Gu, Guillaume Tcherkez, Ülo Niinemets   +8 more
wiley   +1 more source

How does sea ice influence δ18O of Arctic precipitation? [PDF]

, 2017
This study investigates how variations in Arctic sea ice and sea surface conditions influence δ18O of present-day Arctic precipitation. This is done using the model isoCAM3, an isotope-equipped version of the National Center for Atmospheric Research ...
Anne-Katrine Faber, Bo Møllesøe Vinther, Vinther, Bo Mollesoe, Sjolte, Jesper, Rasmus Anker Pedersen, Vinther, Bo Møllesøe, Jesper Sjolte, J. Sjolte, Faber, Anne-Katrine, A.-K. Faber, Faber, Anne Katrine, Pedersen, Rasmus Anker, B. Møllesøe Vinther, R. Anker Pedersen   +13 more
core   +1 more source

Diagenetic controls on porosity evolution and pore type organisation in microporous carbonate rocks: Evidence for mesogenetic porosity formation

Sedimentology, EarlyView.
ABSTRACT Microporous carbonate rocks typically record complex diagenetic histories driven by microbial activity and fluid interactions within multiple diagenetic environments. The relative roles of meteoric and burial diagenetic processes in pore evolution remain debated, particularly within Cretaceous carbonate systems of the Middle East, as does the ...
Hugues Bitault, Cathy Hollis, Alain Tonetto, Pierre Deschamps, Philippe Léonide, François Fournier   +5 more
wiley   +1 more source

Hydroclimatic controls on lake water oxygen isotope in alpine lake on the northern Tibetan Plateau: Insights from isotope mass balance modeling

Journal of Hydrology: Regional Studies
Study region: Bangkog Lake, a representative alpine lake on the northern Tibetan Plateau (TP).Study focus: This study investigates the controls on alpine lake water δ18O variability through monthly monitoring of stable isotopes (δ18O and δD) and ...
Yongjie Lin, Mianping Zheng, Chuanyong Ye   +2 more
doaj   +1 more source

A reconstructed PDO history from an ice core isotope record on the central Tibetan Plateau

npj Climate and Atmospheric Science
Ice core oxygen isotope (δ18O) records from low-latitude regions preserve high-resolution climate records in the past, yet the interpretation of these ice core δ18O records is still facing difficulty due to the uncertainty of ice core dating.
Shijie Li, Lide Tian, Zhongyin Cai, Di Wang, Lili Shao, Xiaoyi Yang, Shangjie Wang, Feng Liu, Pengbin Liang   +8 more
doaj   +1 more source

Carbon and Oxygen Isotope Records from Tridacna derasa Shells: Toward Establishing a Reliable Proxy for Sea Surface Environments.

PLoS ONE, 2016
We report the carbon (δ13C) and oxygen (δ18O) isotope records of three modern Tridacna derasa shells from Ishigaki-jima, southwestern Japan. The high-resolution δ13C profiles of samples from the inner shell layer on cross-sections fall within similar ...
Junpei Yamanashi, Hideko Takayanagi, Ayaka Isaji, Ryuji Asami, Yasufumi Iryu   +4 more
doaj   +1 more source

All Baculites δ18O and δ13C Data

, 2019
This supplementary figure shows all δ18O and δ13C data for all baculites sampled during this study on single ...
Tobin, Thomas S., Thomas S. Tobin (6322214), Ellis, Nicholas M., Nicholas M. Ellis (6322211)   +3 more
core   +1 more source

Exploratory Measurements of Singly Substituted and Clumped Isotopologues in Iodate Using Electrospray Ionization Mass Spectrometry

Rapid Communications in Mass Spectrometry, Volume 40, Issue 22, 30 November 2026.
ABSTRACT Rationale Clumped isotope geochemistry can reveal the temperatures and chemical pathways at which molecules form, but it remains unexplored for most inorganic systems. Iodate (IO3−) is central to ocean and atmospheric iodine cycling and to tracking radioactive iodine from nuclear activity.
Jamie Lucarelli, Amanda R. Bubas, Richard M Cox, Sophie B. Lehmann, Aradhna Tripati, Mark Engelmann, Elise R. Conte   +6 more
wiley   +1 more source