Diabase is a mafic, holocrystalline, igneous rock equivalent to volcanic basalt or intrusion gabbro. Diabase normally has a fine, but visible texture of euhedral lath shaped plagioclase crystals set in a finer matrix of pyroxene, typically augite, with minor olivine and magnetite. Accesory and alteration minerals include hornblende, biotite, apatite, pyrrhotite, chalcopyrite, serpentine, chlorite, and calcite. The texture is termed ''ophitic'' and is typical of diabases. The feldspar is toward the calcic end, most commonly labradorite. Diabase is usually found in smaller relatively shallow intrusive bodies such as dike (geology) and sill (geology)s. Diabase dikes occur in regions of crustal extension and often occur in dike swarms of hundreds of individual dikes or sills radiating from a single volcanic center. The Palisades of the Hudson River, near New York City, are an example of a diabase sill. The dike complexes of the Hebrides Tertiary volcanic province which includes Skye, Rum, Mull, and Arran of western Scotland, the Slieve Gullion region of Ireland, and extends across nothern England contains many examples of diabase dike swarms. Diabase is also called dolerite in many older references. Igneous rocks
Article is too technical. Needs to be reworded for those not having a degree in geology.--User:Lloydd 06:52, 10 Mar 2005 (UTC)
See other meanings of words starting from letter:
Words begining with Diabase:
Diabase
Diabase
Diabase
Diabase is a mafic, holocrystalline, igneous rock equivalent to volcanic basalt or intrusion gabbro. Diabase normally has a fine, but visible texture of euhedral lath shaped plagioclase crystals set in a finer matrix of pyroxene, typically augite, with minor olivine and magnetite. Accesory and alteration minerals include hornblende, biotite, apatite, pyrrhotite, chalcopyrite, serpentine, chlorite, and calcite. The texture is termed ''ophitic'' and is typical of diabases. The feldspar is toward the calcic end, most commonly labradorite. Diabase is usually found in smaller relatively shallow intrusive bodies such as dike (geology) and sill (geology)s. Diabase dikes occur in regions of crustal extension and often occur in dike swarms of hundreds of individual dikes or sills radiating from a single volcanic center. The Palisades of the Hudson River, near New York City, are an example of a diabase sill. The dike complexes of the Hebrides Tertiary volcanic province which includes Skye, Rum, Mull, and Arran of western Scotland, the Slieve Gullion region of Ireland, and extends across nothern England contains many examples of diabase dike swarms. Diabase is also called dolerite in many older references. Igneous rocks
Diabase
Article is too technical. Needs to be reworded for those not having a degree in geology.--User:Lloydd 06:52, 10 Mar 2005 (UTC)
See other meanings of words starting from letter:
D
DA | DB | DC | DE | DF | DG | DH | DI | DJ | DK | DL | DM | DN | DO | DP | DR | DS | DT | DU | DW | DX | DY | DZ |Words begining with Diabase:
Diabase
Diabase
Sponsored links: praca, nurkowanie.
These materials are based on Wikipedia and licensed under the GNU FDL
Untitled Document
| Linki sponsorowane | Tani hosting | Pozycjonowanie |
YouTube.com videos better site than Turbo Tax 2007
