Diabase Dikes


Diabase is usually found in smaller relatively shallow intrusive bodies such as dikes and sills . 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.

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Diabase  ˈ d aɪ ə b eɪ s  or dolerite or microgabbro is a mafic holocrystalline subvolcanic rock equivalent to volcanic basalt or plutonic gabbro Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite dark mafic glass

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Sheeted dikes in Cyprus are composed of dolerite A contact between basalt on the left and dolerite in Cyprus The basaltic dike is finegrained because it is younger and was chilled it lost heat rapidly to the diabase dike on the right

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H OBrien  P Heino in Mineral Deposits of Finland 2015 Diabase Dikes Crosscutting the entire Siilinjärvi complex are diabase dikes of basaltic composition with widths that range from centimeters to several meters rarely up to 60 m refer to Fig 431

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Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite dark mafic glass Diabase Čeština Dolerit také Diabas  je intruzivní magmatická hornina se středně zrnitou strukturou a tmavou barvou

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Polylines representing the dikes folds and cross sections for the Caldwell 75minute quadrangle North Carolina Diabase dike  inferred  Diabase Black to greenishblack fine to mediumgrained dense consists primarily of plagioclase augite and may contain olivine

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This title surely is not a phrase you see every day but the phenomenon is perhaps one youve seen The most noticeable diabase dikes I have encountered have been in the Tetons of Wyoming think Mount Moran and on the Schoodic Peninsula in Acadia National Park

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Diabase is usually found in smaller relatively shallow intrusive bodies such as dikes and sills 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

Diabase is usua...

NORSK GEOLOGISK TIDSSKRIFT 26 199 Ms rec 5 Mar 1946 GENESIS OF LATEMAGMATIC DIABASE DIKES BY HENRICH NEUMANN With l figure Ascutney Mountain Vermont

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There are millions of geocaches worldwide and probably even some near you right now Visit Geocachingcom to see just how many geocaches are nearby and to get the free Official Geocaching app

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