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In geology, a resurgent dome is a dome formed by swelling or rising of a caldera floor due to movement in the magma chamber beneath it. Unlike a lava dome , a resurgent dome is not formed by the extrusion of highly viscous lava onto the surface, but rather by the uplift and deformation of the surface itself by magma movement underground.
Redondo Peak is an example of the volcanic feature known as a resurgent dome. It was formed shortly after the caldera-forming eruption of 1.25 million years ago, but it is not itself an eruptive feature. The summit of the mountain is composed of tuff ejected by the caldera-forming eruption, rather than of subsequent volcanic ejecta. [4]
Although the Valles caldera is not unusually large, it is relatively young (1.25 million years old) and unusually well preserved, [31] and it remains one of the best studied examples of a resurgent caldera. [6] The ash flow tuffs of the Valles caldera, such as the Bandelier Tuff, were among the first to be thoroughly characterized. [32]
Serpent Mound crater, also known as the Serpent Mound Disturbance, [1] is an eroded meteorite impact crater in Ohio, United States. It lies largely in Adams County , with the northern part mostly in Highland County , except for a small northeast part in Pike County .
A map of Ohio's drought conditions from the U.S. Drought Monitor. Ohio Fire Marshal Kevin Reardon said all Ohioans, particularly homeowners, farmers, and woodland owners, should be cautious during ...
Name County Size Image Year established; acres km 2; A. W. Marion State Park: Pickaway: 454: 1.84: 1950 Adams Lake State Park: Adams: 96: 0.39: 1950 Alum Creek State Park
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Officials expect 150,000 to 575,000 visitors when the total solar eclipse casts its shadow over Ohio on April 8. ... water and snacks; and have a paper map on hand in case cell service is bad.