trappean

British  

/ ˈtræpɪən, trəˈpɪən /

adjective

1. rare of, relating to, or consisting of igneous rock, esp a basalt

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Etymology

Origin of trappean

C19: from _trap ³

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Example Sentences

See Examples For:

trappean

I observed boulders of greenstone in several places; and on the islet of Villegagnon, and likewise on the coast some miles northward, two large trappean dikes.

From Geological Observations on South America by Charles Darwin

New Red sandstone of Connecticut Valley. —, trappean rocks of the.

From The Student's Elements of Geology by Sir Charles Lyell

If the term "overlying" can in this instance be applied to a Plutonic rock, it is only in proportion as that rock begins to acquire a trappean aspect.

From The Student's Elements of Geology by Sir Charles Lyell

Westward of this main range, the metamorphic schists are foliated, though less plainly, in the same direction, which is likewise common to the zone of old erupted trappean rocks, forming the outermost islets.

From Geological Observations on South America by Charles Darwin

The latter was close to the spot where the observations were made, and where I noticed some trappean dykes intersecting the granite in a North-North-West direction.

From Discoveries in Australia, Volume 2 Discoveries in Australia; with an Account of the Coasts and Rivers Explored and Surveyed During the Voyage of H.M.S. Beagle, in The Years 1837-38-39-40-41-42-43. By Command of the Lords Commissioners Of the Admiralty. Also a Narrative of Captain Owen Stanley's Visits To the Islands in the Arafura Sea by John Lort Stokes

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