Wiktionary
n. (context vulcanology English) A conical deposit of rock fragments around a volcano.
Wikipedia
Cinder Cone is a cinder cone with a small crater on the west side of the Helm Glacier in Garibaldi Provincial Park in British Columbia, Canada. Cinder Cone is surrounded by cinder flats and its crater is filled with melt water during the summer. Cinder Cone is eroded easily by melt water during the spring, washing the pyroclastics into the Valley of Desolation. Cinder Cone produced a long lava flow during the early Holocene.
A cinder cone or scoria cone is a steep conical hill of loose pyroclastic fragments, such as either volcanic clinkers, cinders, volcanic ash, or scoria that has been built around a volcanic vent. They consist of loose pyroclastic debris formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as either cinders, clinkers, or scoria around the vent to form a cone that often is symmetrical; with slopes between 30-40°; and a nearly circular ground plan. Most cinder cones have a bowl-shaped crater at the summit.
Usage examples of "cinder cone".
There was a hole in the side of the cinder cone, lying in deep shadow.
Nye stood with a curse and slid down the inside of the cinder cone, no longer making any attempt to conceal his presence.
I don't think he expected anybody to find the Mars-2 site for years, let alone follow him to the cinder cone.
It was impossible to connect to the grubby reality of a cracked cinder cone, here in this great chasm.
Where the eastern sun angled across ravines, shadows streaked the cinder cone.
He'd been staring back toward the cinder cone until the light fell across him.
They drove hard over the sastrugi and along ropy lava mounds that served as roads, north past the bulk of Tharsis Tholus, a volcano that was about the size of Mauna Loa, though under the rise of Ascraeus it looked like a cinder cone.
Out of sight above our heads is Vulcan's Throne, the biggest cinder cone in the Grand Canyon, the source of all the molten lava which spilled into the gorge to dam the river millions of years ago.