Trap rock
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Trap rock, also known as either trapp or trap, is any dark-colored, fine-grained, non-granitic intrusive or extrusive igneous rock. Types of trap rock include basalt, peridotite, diabase, and gabbro.
The East Rock trap rock ridge overlooking New Haven, Connecticut, U.S.
Trap rock forming a characteristic pavement, Giant's Causeway, Northern Ireland
Trap rock cliff overlooking the Hudson River from an overlook on the Hudson Palisades in Bergen County, New Jersey, U.S.
Trap rock forming a characteristic stockade wall, Giant's Causeway, Northern Ireland
Siberian Traps
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The Siberian Traps are a large region of volcanic rock, known as a large igneous province, in Siberia, Russia. Large volumes of basaltic lava covered a large expanse of Siberia in a flood basalt event
Trap rock
…Types of trap rock include basalt, peridotite, diabase, and gabbro. Trap is also used to refer to flood (plateau) basalts, such as the Deccan Traps and Siberian Traps. The erosion of trap rock created by the stacking of successive lava flows often creates a distinct stairstep landscape from which the term trap was…
Step-like geomorphology at the Putorana Plateau, which is a World Heritage Site
Columnar jointing in igneous rock of the Putorana Plateau
A sample of Siberian Traps basalt (dark) containing native iron (from the Putorana Plateau)