bornhardt

bornhardt

[′bȯrn‚härt]
(geology)
A large dome-shaped granite-gneiss outcrop having the characteristics of an inselberg.
References in periodicals archive ?
Cooman, K., Gajardo, M., Nieto, J., Bornhardt, C., y Vidal, G.
The group that I studied lived in a forest that clothed a prominent inselberg (monadnock, bornhardt, pan de azucar) close to the administrative center, overlooking the Orinoco River.
[5] COOMAN, K.; GAJARDO, M.; NIETO, J.; BORNHARDT, C.; VIDAL, G.
[24] VIDAL, G.; NIETO, J.; COOMAN, K.; GAJARDO, M.; BORNHARDT, C.
This term denotes solitary; usually monolithic mountains or groups of mountains that rise abruptly from surrounding plains (Bornhardt 1900).
(1999): Bornhardt inselbergs in the Salt River Valley, south of Kellerberrin, Western Australia (with notes on a tesselated pavement in granite and pinnacles in laterite).
On a larger scale, the differential weathering of a rock mass results in nascent bornhardts within compartments produced by fracture propagation consequent on recurrent shearing.
Corestone boulders and many bornhardts are etch or two-stage forms that were initiated by differential weathering at the weathering front by waters penetrating from fractures into the fracture-defined blocks (figure 4).
Orthogonal and rhomboidal fractures delineate domical bornhardts shaped in the 1592 million years old Mesoproterozoic dacite and other silicic volcanic rocks.
"The History of the Rammelsberg Mine" by Wilhelm Bornhardt, T.A.