Results 1 to 10 of about 683,608 (308)

Mechanical properties of dense mycelium-bound composites under accelerated tropical weathering conditions [PDF]

open access: yesScientific Reports, 2021
Mycelium, as the root of fungi, is composed of filamentous strands of fine hyphae that bind discrete substrate particles into a block material. With advanced processing, dense mycelium-bound composites (DMCs) resembling commercial particleboards can be ...
Xin Ying Chan   +4 more
doaj   +2 more sources

Paleogeographic controls on Phanerozoic weathering rates and implications for climate regulation [PDF]

open access: yesNature Communications
Earth’s climate has remained habitable for billions of years, a stability usually attributed to a negative feedback from silicate weathering – the chemical breakdown of silicate rocks on land, which consumes atmospheric carbon dioxide faster as climate ...
R. J. Graham   +3 more
doaj   +2 more sources

Bone weathering in a Mediterranean climate region: An experimental case study from Doñana National Park (Spain). [PDF]

open access: yesPLoS ONE
Bone weathering constitutes a highly informative and commonly studied variable in taphonomic analyses. Vertebrate paleontologists, zoo-archeologists and forensic anthropologists have used weathering as a taphonomic clock to ascertain the exposure time of
Marcos Pizarro-Monzo   +5 more
doaj   +2 more sources

The effect of the Pliocene temperature pattern on silicate weathering and Pliocene–Pleistocene cooling [PDF]

open access: yesClimate of the Past, 2023
The warmer early Pliocene climate featured changes to global sea surface temperature (SST) patterns, namely a reduction in the Equator–pole gradient and the east–west SST gradient in the tropical Pacific, the so-called “permanent El Niño”.
P. Maffre   +2 more
doaj   +1 more source

Geochemistry of a spheroidal weathering profile in a tropical mountainous landscape, Rio de Janeiro, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2022
Boulders are an important material in debris flow and their source is coupled with spheroidal weathering profiles that produce corestones. The goal of this work was to establish the geochemical transformations that produced corestones and distinguished ...
CARLA S. SILVEIRA   +4 more
doaj   +1 more source

Climate, vegetation, and weathering across space and time in Lake Tanganyika (tropical eastern Africa)

open access: yesQuaternary Science Advances, 2021
Climate and vegetation influence weathering rates and processes; however, evaluating the effects of each and feedbacks between systems, has yet to be accomplished for many types of landscapes.
Sarah J. Ivory   +10 more
doaj   +1 more source

Weathering Products of a Dismantled Variscan Basement. Minero-Chemical Proxies to Insight on Cretaceous Palaeogeography and Late Neogene Palaeoclimate of Sardinia (Italy)

open access: yesFrontiers in Earth Science, 2020
This study compares, for the first time, the mineralogy and geochemistry of two residual-clay deposits in NW Sardinia (Nurra district) that formed at different times in tropical and sub-tropical climates.
Paola Mameli   +3 more
doaj   +1 more source

Weather of the Tropics [PDF]

open access: yesNature, 1955
Tropical Meteorology By Herbert Riehl. Pp. x + 392. (London: McGraw-Hill Publishing Company, Ltd., 1954.) 61s.
openaire   +1 more source

The Effect of Size Distribution on the Geochemistry and Mineralogy of Tropical River Sediments and Its Implications regarding Chemical Weathering and Fractionation of Alkali Elements

open access: yesLithosphere, 2022
The mineralogical and geochemical compositions of the sediments deposited by rivers have been used extensively to evaluate past chemical weathering and the physical erosion history of drainage basins at different time scales.
Kaikai Wu   +9 more
doaj   +1 more source

A revised model of global silicate weathering considering the influence of vegetation cover on erosion rate [PDF]

open access: yesGeoscientific Model Development
Silicate weathering, which is of great importance in regulating the global carbon cycle, has been found to be affected by complicated factors, including climate, tectonics and vegetation. However, the exact transfer function between these factors and the
H. Zuo   +9 more
doaj   +1 more source

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