A weathering rind represents the alteration of the outer portion of a rock by exposure to air or near surface groundwater over a period of time. Typically, a weathering rind may be enriched with either iron or manganese (or both), and silica, and oxidized to a yellowish red to reddish color.

Terrestrial processes, most notably weathering, chemical deposition, and desert varnish, can produce rinds, coatings, and crusts on rocks that are often mistaken for meteorite fusion crusts. Typically, however, such rinds are thicker than meteorite fusion crusts.

2021年1月8日 · The weathering of rock fragments at or near Earth's surface results in the in situ conversion of unweathered core material to weathering rind. In field settings, rind thicknesses have been used to constrain the relative ages of surficial deposits.

2012年12月1日 · Lithologic factors, including grain size and chemistry, partially control rind development and overall rock disintegration. Porous rocks with large crystals, such as granite and sandstone, tend to weather faster than cryptocrystalline rocks with tightly knit groundmass such as basalt and associated volcanics.

2008年11月30日 · The potential of 238 U– 234 U– 230 Th chronometry for constraining the formation rate of weathering rinds developed on fresh rocks is assessed by analyzing a weathering rind on a basaltic clast from a 125 kyr old Costa Rican alluvial terrace. Eighteen subsamples were collected from one section of the clast by drilling cores (4 mm in ...

Weathering Rinds - a rock may show an outer weathered zone and an inner unweathered zone in the initial stages of weathering. The outer zone is known as a weathering rind. As weathering continues the thickness of the weathering rind increases, and thus can sometimes be used as an indicator of the amount of time the rock has been exposed to the ...

2013年3月1日 · The presence of rock coatings as well as weathering rinds on rock surfaces amplifies the important role played by geochemical processes in the Arctic alpine climate of northern Sweden in ...

2021年1月1日 · The weathering rinds exhibit both geochemical and morphologic changes to the parent rock cores, including extensive dissolution, oxidation, and hydration as well as...

2005年4月1日 · When it comes to presenting visual evidence of rock and mineral decay, weathering rinds (WRs) represent one of the most recognizable weathering features not tied to differential erosion.

To explore the mechanisms of weathering‐rind formation, rock properties of an andesite cobble were investigated. The andesite cobble studied in this paper was taken from a fluvial terrace which formed around 290 ka BP in the Nasuno‐ga‐hara area, central Japan.