Results 81 to 90 of about 20,684 (285)

Advancements in Graphdiyne‐Based Multiscale Catalysts for Green Hydrogen Energy Conversion

open access: yesAdvanced Intelligent Discovery, EarlyView.
This review systematically explores the fundamental characteristics of graphdiyne (GDY), cutting‐edge field of GDY‐based multiscale catalysts within sustainable energy conversion systems.Special emphasis is placed on the structure‒property relationships in different reactions.
Qian Xiao, Lu Qi, Siao Chen, Yurui Xue
wiley   +1 more source

Sulfur isotopes from the Paleoproterozoic Francevillian Basin record multigenerational pyrite formation, not depositional conditions

open access: yesCommunications Earth & Environment
Bulk-rock sulfur isotope data from pyrite in the ~2.1 billion-year sedimentary rocks of the Francevillian Basin, Gabon, have underpinned ideas about initial oxygenation of Earth’s surface environments and eukaryote evolution.
Kärt Paiste   +13 more
doaj   +1 more source

Isotopic Evidence for Multiple Recycled Sulfur Reservoirs in the Mangaia Mantle Plume

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Mangaia, an ocean island in the Cook‐Austral volcanic chain, is the type locality for the HIMU mantle reservoir and has also been shown to exhibit evidence for recycled sulfur with anomalous δ34S and Δ33S that has been attributed an Archean origin.
J. W. Dottin III   +4 more
doaj   +1 more source

(Table 1) Sulfur concentrations and isotope ratios of serpentinites from ODP Hole 125-780C

open access: yes, 2006
(Table 1) Sulfur concentrations and isotope ratios of serpentinites from ODP Hole 125 ...
Alt, Jeffrey C   +3 more
core   +1 more source

Multiple Sulfur Isotope Records of the 3.22 Ga Moodies Group, Barberton Greenstone Belt

open access: yesGeosciences, 2020
The Moodies Group, the uppermost unit in the Barberton Greenstone Belt (BGB) in South Africa, is a ~3.7-km-thick coarse clastic succession accumulated on terrestrial-to-shallow marine settings at around 3.22 Ga.
Masafumi Saitoh   +6 more
doaj   +1 more source

Geology and stable isotope geochemistry of Paleoarchean sulfur. Formation, preservation and geobiology of ancient pyrite and barite

open access: yes, 2013
Sulfur isotopes in ancient sulfate and sulfide minerals provide a comprehensive record of microbial processes involved in the early sulfur cycle on Earth.
Roerdink, D.L.   +2 more
core  

(Table 1) Sulfur concentrations and isotope ratios of serpentinites from ODP Hole 125-779A

open access: yes, 2006
(Table 1) Sulfur concentrations and isotope ratios of serpentinites from ODP Hole 125 ...
Alt, Jeffrey C   +3 more
core   +1 more source

Atmospheric sulfur is recycled to the crystalline continental crust during supercontinent formation

open access: yesNature Communications, 2018
The long-term evolution of the sulfur budget in the lithosphere is poorly constrained. Here, using mass independent isotope fractionation as an indelible tracer, the authors track the pathway of sulfur from the Earth’s surface to punctuated episodes of ...
Crystal LaFlamme   +3 more
doaj   +1 more source

Deconstructing the Dissimilatory Sulfate Reduction Pathway: Isotope Fractionation of a Mutant Unable of Growth on Sulfate

open access: yesFrontiers in Microbiology, 2018
The sulfur isotope record provides key insight into the history of Earth's redox conditions. A detailed understanding of the metabolisms driving this cycle, and specifically microbial sulfate reduction (MSR), is crucial for accurate paleoenvironmental ...
Emma Bertran   +8 more
doaj   +1 more source

(Table 1) Sulfur concentrations and isotope ratios of serpentinites from ODP Hole 125-784A

open access: yes, 2006
(Table 1) Sulfur concentrations and isotope ratios of serpentinites from ODP Hole 125 ...
Alt, Jeffrey C   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy