Results 161 to 170 of about 4,918,557 (342)

Mineralogy and provenance of red clay soils in Barind and Madhupur clay formations, Bangladesh: Implications for tectonic setting and chemical weathering

open access: yesJournal of Asian Earth Sciences: X
This study investigates the geochemical and mineralogical properties of the Barind and Madhupur clay formations in the Bengal Basin, focusing on their provenance, tectonic setting and weathering processes in relation to regional geological evolution ...
Md.Golam Mostafa   +10 more
doaj   +1 more source

The Sydney duricrusts: their terminology and nomenclature [PDF]

open access: yes, 1970
Two main duricrust types - laterites and ferricretes - and their underlying materials are mapped and described for the northern parts of the Sydney district, New South Wales.
Faniran, Adetoye
core   +1 more source

Tracking the Dynamics of human Colonisation and Adaptation in Central Vanuatu: Preliminary Results From Excavation and Survey at Pangpang, East Efate

open access: yesArchaeology in Oceania, EarlyView.
ABSTRACT In October 2022 an extensive archaeological landscape was identified by staff of the Vanuatu Cultural Centre at Pangpang on the east coast of Efate Island in central Vanuatu. It included midden deposits on the banks of the Pangpang River near the sea at Forari Bay where Lapita and Early Erueti‐style pottery sherds were recovered.
Stuart Bedford   +9 more
wiley   +1 more source

Effects of Replacing Alfalfa Hay With Barley Silage in High‐Concentrate Diets: Chewing Behavior, Ruminal Fermentation, Total‐Tract Digestibility, and Milk Production of Dairy Cows in Mid‐Lactation Phase

open access: yesAnimal Research and One Health, EarlyView.
We assessed lactation productivity in dairy cows when replacing alfalfa hay with barley silage. A 50% replacement increased feed intake, whereas total replacement improved nutrient conversion to milk. Barley silage can effectively replace alfalfa hay, enhancing sustainability and resilience in dairy production amid forage quality constraints and market
M. R. Naji‐Zavareh   +5 more
wiley   +1 more source

Chemical Weathering and Erosional Response of Northern New Guinea to Orbital‐Scale Climate Variability

open access: yesGeochemistry, Geophysics, Geosystems
The island of New Guinea comprises arc‐ophiolite units tectonically imbricated with continental rocks offscraped from the colliding Australian plate and contributes large amounts of sediment to the ocean. A sequence deposited close to the north shore and
Yifan Du, Peter D. Clift, Andrew Carter
doaj   +1 more source

Responses of ectomycorrhizal fungi to mineral substrates [PDF]

open access: yes, 2003
Boreal forest soils are complex, heterogeneous growth substrates where organic and mineral components provide nutrient resources for soil organisms and plants. Mineral nutrients are cycled between living and dead organic components of the forest soil and
Rosling, Anna
core  

Heat Stress and Gut Microbiome Dynamics in Poultry: Interplay, Consequences, and Mitigation Strategies

open access: yesAnimal Research and One Health, EarlyView.
Heat stress disrupts gut microbial balance in poultry, impairing nutrient absorption and immunity. This review outlines the interplay between thermal stress and microbiome dynamics and discusses integrative mitigation strategies, probiotics, phytogenics, cooling systems, and genetic adaptation to enhance poultry resilience.
O. E. Oke   +9 more
wiley   +1 more source

Mid‐Proterozoic Transient Oxygenation Events Linked to Enhanced Continental Chemical Weathering: Evidence From Carbonate Lithium Isotopes

open access: yesGeophysical Research Letters
Potential drivers disrupting mid‐Proterozoic (∼1.8–0.8 Ga) environmental stasis remain poorly constrained. Here we examined carbonate Li isotopes from the ∼1.44 Ga Tieling Formation, North China, to evaluate the effects of continental chemical weathering
Lei Xu   +12 more
doaj   +1 more source

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó   +9 more
wiley   +1 more source

Chemical weathering and CO2 consumption rates of rocks in the Bishuiyan subterranean basin of Guangxi, China. [PDF]

open access: yesSci Rep, 2020
Jiang P   +7 more
europepmc   +1 more source

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