Rutan Hill
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Rutan Hill is the local name for a hill on the United States Geological Survey Branchville 7.5-minute map. It is located about 2.46 miles south-southwest of Colesville, New Jersey in Wantage Township,
Rutan Hill
Nepheline syenite from the Beemerville Alkaline Complex
Diatreme
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A diatreme, sometimes known as a maar-diatreme volcano, is a volcanic pipe associated with a gaseous explosion. When magma rises up through a crack in Earth's crust and makes contact with a shallow bo
Rutan Hill
…elevation of just over 1,020 feet (310 m). This hill lies entirely within private, posted property. This nondescript hill is the surface expression of a diatreme that is the northern part of the Late Ordovician Beemerville Alkaline Complex. The surface exposures of the Beemerville Alkaline Complex consist of two…
Aerial view of the Moses Rock Dike diatreme in San Juan County, Utah
An illustration using a mix of common and geological terms of a diatreme. The crater and tuff terms are usually combined into the term maar, and maar is often combined into the term diatreme (see text for definitions) rather than diatreme excluding the maar.