Results 11 to 20 of about 4,093 (226)

Spatiotemporal changes in riverine input into the Eocene North Sea revealed by strontium isotope and barium analysis of bivalve shells [PDF]

open access: yesScientific Reports
Reconstructing hydrological conditions of past warm periods, such as the Eocene ‘hot house’ provides empirical data to compare to state of the art climate models.
Jorit F. Kniest   +9 more
doaj   +2 more sources

The Osmium Isotope Signature of Phanerozoic Large Igneous Provinces

open access: yesGeophysical Monograph Series, Page 229-246., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Alexander J. Dickson   +2 more
wiley  

+3 more sources

Sr-Nd-Hf Isotopic Disequilibrium During the Partial Melting of Metasediments: Insight From Himalayan Leucosome

open access: yesFrontiers in Earth Science, 2022
Radiogenic isotopes of granitoids are widely applied to fingerprint the source of granitoids and study the magma mingling and assimilation processes, aiming to decipher the planetary differentiation.
Lei Yang   +8 more
doaj   +1 more source

Nd and Sr Isotopes and REE Investigation in Tropical Weathering Profiles of Amazon Region

open access: yesFrontiers in Earth Science, 2022
The exceptional development of lateritic profiles make the Amazon one of the best places to conduct a refined study on the effects of long-term tropical climate on the Earth's surface rocks.
Adriana Maria Coimbra Horbe   +2 more
doaj   +1 more source

Lead isotope evolution during the multi-stage core formation

open access: yesSolid Earth Sciences, 2022
The evolution of the U-Pb decay system is determined by their initial isotopic composition in the proto-Earth and the subsequent global differentiation.
Tong Fang, Jing Huang, Robert E. Zartman
doaj   +1 more source

Interactions between distal epiclastic and bio‐chemogenic sedimentation at the foothills of a mafic alkaline volcano: The case of the Oligocene Doupovské Hory Volcanic Complex (Czech Republic)

open access: yesThe Depositional Record, 2023
Late Oligocene (ca 25 Ma) volcano‐sedimentary successions exposed on the western periphery of the Doupovské Hory Volcanic Complex reveal a complex sedimentation history influenced in various ways by decay of the alkali basalt volcanic edifice. Weathering
Vladislav Rapprich   +8 more
doaj   +1 more source

A Multi-Elements Isotope Approach to Assess the Geographic Provenance of Manila Clams (Ruditapes philippinarum) via Recombining Appropriate Elements

open access: yesFoods, 2021
The increasing global consumption of seafood has led to increased trade among nations, accompanied by mislabeling and fraudulent practices that have rendered authentication crucial.
Eun-Ji Won   +8 more
doaj   +1 more source

Constraints on Martian Chronology from Meteorites

open access: yesGeosciences, 2020
Martian meteorites provide the only direct constraints on the timing of Martian accretion, core formation, magmatic differentiation, and ongoing volcanism. While many radiogenic isotope chronometers have been applied to a wide variety of Martian samples,
Zoltán Váci, Carl Agee
doaj   +1 more source

Isotopes in Economic Geology, Metallogenesis and Exploration [PDF]

open access: yes, 2023
This open access book documents the use of radiogenic and stable isotopes to study mineral deposits from a global to the deposit scale. It includes data-sets that have been directly used in mineral exploration.

core   +2 more sources

Distinct iron cycling in a Southern Ocean eddy

open access: yesNature Communications, 2020
Eddies are common ocean features that isolate large swaths of seawater, but it is unclear how they influence productivity of phytoplankton trapped inside.
Michael J. Ellwood   +5 more
doaj   +1 more source

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