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Castell Carreg Cennen means castle on a rock next to (the river) Cennen, the river name itself being a reference either to cen meaning lichen or perhaps a personal name. [1] The dramatic limestone precipice was originally the site of a native Welsh castle, possibly constructed by The Lord Rhys (d.
Mineral symbols (text abbreviations) are used to abbreviate mineral groups, subgroups, and species, just as lettered symbols are used for the chemical elements.. The first set of commonly used mineral symbols was published in 1983 and covered the common rock-forming minerals using 192 two- or three-lettered symbols. [1]
Ford and railway bridge near Meusydd. The Afon Cennen is a river in the county of Carmarthenshire, south Wales. [1] It rises on the northern slopes of the Black Mountain to the east of the summit of Tair Carn Uchaf and flows north to Blaencennen Farm, then westwards past Carreg Cennen Castle, continuing through the village of Trap where it exits the Brecon Beacons National Park.
Upload file; Search. Search. ... Download as PDF; Printable version ... Cerium nitride is a binary inorganic compound of cerium and nitrogen with the chemical formula ...
Also called Indianite. A mineral from the lime-rich end of the plagioclase group of minerals. Anorthites are usually silicates of calcium and aluminium occurring in some basic igneous rocks, typically those produced by the contact metamorphism of impure calcareous sediments. anticline An arched fold in which the layers usually dip away from the fold axis. Contrast syncline. aphanic Having the ...
SCK•CEN, Belgian nuclear research institute (Centre d'Étude de l'énergie Nucléaire) Chemical and Engineering News , a publication of the American Chemical Society Abbreviation or code
The late Cenomanian represents the highest mean sea level observed in the Phanerozoic eon, the past 600 million years (about 150 meters above present-day sea levels). A corollary is that the highlands were at all time lows, so the landscape on Earth was one of warm broad shallow seas inundating low-lying land areas on the precursors to today's ...
Local geological sites including RIGS are locally designated. In many areas the selection and designation process relies on significant amounts of volunteer effort. Once designated through notification to the local planning authority, they are conserved and protected as a material consideration through local and national planning policies.