A broken basalt cobble (15 x 10 cm size) showing well-developed weathering rind from Brazil, where chemical weathering is quite active.Weathering rind of a large granite glacial erratic eroding out of unconsolidated Permian till, Selwyn Rock, Inman Valley, South Australia
A weathering rind is a discolored, chemically altered, outer zone or layer of a discrete rock fragment formed by the processes of weathering. The inner boundary of a weathering rind approximately parallels the outer surface of the rock fragment in which it has developed. Rock fragments with weathering rinds normally are discrete clasts, ranging in size from pebbles to cobbles or boulders. They typically occur either lying on the surface of the ground or buried within sediments such as alluvium, colluvium, or glacial till. 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. Often a weathering rind exhibits multiple bands of differing colors.[1][2][3]
Although sometimes confused with weathering rinds, spheroidal weathering is a different type of chemical weathering in which spherical layers of weathered material progressively develop in situ around blocks of jointed bedrock beneath the Earth's surface, rather than in reworked and transported clasts such as cobbles and boulders.[4][5]
^Colman, SM, and KL Pierce (2001) Weathering rinds on andesitic and basaltic stones as a Quaternary age indicator, Western United States. Professional Paper no. 1210. United States Geological Survey, Reston, Virginia.
^Neuendorf, KKE, JP Mehl, Jr., and JA Jackson, eds. (2005) Glossary of Geology (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. ISBN 0-922152-76-4
^Oguchi, CT (2001) "Formation of weathering rinds on andesite." Earth Surface Processes and Landforms. 26(8):847–858.
^Fairbridge, RW (1968) Spheroidal Weathering. in RW Fairbridge, ed., pp. 1041-1044, The Encyclopedia of Geomorphology, Encyclopedia of Earth Sciences, vol. III. Reinhold Book Corporation, New York, New York.
^Ollier, CD (1971). Causes of spheroidal weathering. Earth-Science Reviews 7:127-141.
A weatheringrind is a discolored, chemically altered, outer zone or layer of a discrete rock fragment formed by the processes of weathering. The inner...
Spheroidal weathering is a form of chemical weathering that affects jointed bedrock and results in the formation of concentric or spherical layers of...
Bruce Rind RIND - acronym for reversible ischemic neurologic deficit Weatheringrind of rocks and boulders Millrind, a support component for millstones...
surface of a rock or other material by either the development of a weatheringrind within the surface of a rock, the formation of desert varnish on the...
Lateritic nickel ore deposits are surficial, weatheredrinds formed on ultramafic rocks. They account for 73% of the continental world nickel resources...
usually called flint. Nodular chert is often dark in color with a white weatheringrind. Most chert nodules have textures suggesting they were formed by diagenetic...
Supposedly as a result of weathering, the patina is relatively thin, consisting of a weatheringrind in which weathering has turned some of the feldspar...
Yvette; Furbish, David (2001). "Paradox of downstream fining and weathering-rind formation in the lower Hoh River, Olympic Peninsula, Washington" (PDF)...
nickel deposit it the only one among all of the deposits of the Urals' weatheringrind, where ferruginous chlorite chamosite is contained not in initial percentage...
areas between grains of rock, chemically and physically weathering that rock, leaving a rind, which is then indurated (hardened), then recolonized. Stromatolite...
basalts, weathering converts the basalt to calcium-rich clay (montmorillonite) rather than potassium-rich clay (illite). Further weathering, particularly...
subrounded and overlie a layer of small, polished clasts with a red weatheringrind. To the southeast is a distinct group of boulders, which are less than...
Walter Rinder (born June 3, 1934) is an American humanist poet, philosopher, and photographer, whose books of inspirational poetry on love were popular...
by boiling pork rind in water. The dishes cooled without pork rind are called Qīngdòng (Chinese: 清冻) while those containing pork rind in the aspic are...
Etienne, Samuel (2002). "The role of biological weathering in periglacial areas: a study of weatheringrinds in south Iceland". Geomorphology. 47 (1): 75–86...
depths of their parent bodies, not just dehydrated crusts or space-weatheredrinds. Yet meteorites are not sufficient. The body of meteoritics is dominated...
species. They have a pronounced and typical fragrance, similar to lemon rind but less sharp. The outer skin may be rough, often with a bitter taste, or...
herbaceous plant whose fruit are harvested when their immature seeds and epicarp (rind) are still soft and edible. It is closely related, but not identical, to...
Palagonite can also be formed by a slower weathering of lava into palagonite, resulting in a thin, yellow-orange rind on the surface of the rock. The process...
were initiated on special initiative of CM Usman Buzdar. Mir Chaker Khan Rind University of Technology MCUT is public sector Engineering University providing...
BBC. 21 August 2015. Retrieved 22 August 2015. "Met Office loses BBC weather forecasting contract". BBC News. BBC. 23 August 2015. Retrieved 23 August...
4–30 cm (1.6–11.8 in) long and 4–20 cm (1.6–7.9 in) diameter, with a leathery rind or "peel" called a pericarp. The outermost layer of the pericarp is an "exocarp"...
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