Results 181 to 190 of about 36,123 (237)

Northwest Africa 13489: A Strongly Metamorphosed Ungrouped Carbonaceous Chondrite

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract NWA 13489 is a meteorite that has been classified as a brachinite. Brachinites are olivine‐rich primitive achondrites representing residual products after a variable degree of silicate melt extraction on a barely differentiated, noncarbonaceous asteroid.
T. Cuppone   +5 more
wiley   +1 more source

An atlas of apatite and merrillite in martian meteorites: REE Geochemistry and a new tool for shergottite classification

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract The phosphates, apatite and merrillite, are accessory phases in all martian meteorites. Although apatite is commonly used to assess volatile content and speciation in martian meteorites, merrillite is at least twice as abundant in most samples, but poorly understood. Given that shergottites are divided into enriched, intermediate, and depleted
Tahnee Burke   +4 more
wiley   +1 more source

Feasibility of in situ K‐Ar isochron dating on Mars: assessment using the mineralogy of Martian meteorites

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Dating rocks with a 2σ precision of 200 Ma is required to understand the history of Martian habitability and volcanic activity since ~4000 Ma. In situ K‐Ar dating using a spot‐by‐spot laser ablation technique has been developed for isochron dating on Mars.
Hikaru Hyuga   +4 more
wiley   +1 more source

Seasonal changes in leaf litter nutrient concentrations and litterfall, and nutrient return in tropical riparian forests under restoration

open access: yesRestoration Ecology, EarlyView.
Introduction Litterfall is essential in tropical forests, providing nutrients and supporting nutrient cycling through decomposition. During ecological restoration, nutrient cycling rates typically align with forest succession, yet the influence of forest development on nutrient return via litterfall remains unclear.
Luciana R. Bachega, Marcel O. Tanaka
wiley   +1 more source

Aboveground biomass accumulation in Brazilian semi‐deciduous seasonal Atlantic Forest restoration sites over a 20‐year time series

open access: yesRestoration Ecology, EarlyView.
The role of forests undergoing restoration in mitigating climate change is widely accepted. However, periodic assessment of aboveground biomass (AGB) accumulation in actively restored areas is scarce, particularly in tropical forests. Here, we estimated AGB as an indicator of carbon stocks in six Atlantic Forest native species reforestations aged 4–20 ...
Giovanna G. Lemos   +2 more
wiley   +1 more source

Soil seed banks in three restored wildlife corridors; implications for linear habitats in tropical environments

open access: yesRestoration Ecology, EarlyView.
Restoring habitat corridors between fragments and continuous forests can potentially counter the effects of isolation, especially in tropical forests where species sensitivity to fragmentation is high. The ability of restored linear habitats to absorb natural disturbance in inimical surroundings potentially reflects resilience, an important aim of ...
Nigel I. J. Tucker   +3 more
wiley   +1 more source

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