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211. The main rock type of the volcanic rock is trachyandesite with small amounts of trachyte, basaltic-trachyandesite and leucite basaltic-trachyandesite.

212. There are 5 kinds of geological settings: metamorphic basement area, geosyncline area, cover area, Mesozoic volcanic fault basin and tectonic magmatic active belts.

213. Volcanic lightning occurs when roiling ash particles rub against each other and become electrically charged.

214. According of east abyssal plain of the Okinawa Trough with some volcanic materials, it show strong magnetic characteristics different from other sediment environments.

215. Both subaerial and subaqueous volcanic rocks can be found in Yiagcheng Formation of Songliau Basin.

216. Its crystalline structure formed inside a bubble of volcanic gas as igneous rock cooled.

217. Therefore, the cooling was probably caused by a volcanic eruption.

218. There is important for recover history of the Holocene Volcanic and conclude environment of crater.

219. The diatreme breccia pipes belong to volcanic crater phase and volcanic conduit phase, and consist of breccias and binding material.

220. The Minqiao oilfield is located in the southeast of the Jinhu sag, west of Dongtai depression in the Subei basin. Volcanic rock oil reservoir has been found in the Funing Formation.

221. Dark-colored ash and tiny volcanic rocks (lapilli) carpet the crater floor.

222. In the U.S. there are large rhyolitic volcanoes in Wyoming, California, and New Mexico as well as in the Japanese islands and New Zealand's Taupo Volcanic Zone.

223. In each bimodal volcanic succession, there exists a differentiation crystallization relationship between basic and silicic lavas .

224. There are 59 Cenozoic cones, the volcanic texture of which may be classified into cone, dome, lava lake and maar.

225. The prediction of favorable volcanic reservoir with few drilling data is preliminary achieved in this study.

226. Tetrahedrite is a common cupreous sulfide mineral in the Ashele volcanic massive sulfide deposit.

227. Settlers from Fujian cleared the jungle to plant rice, sugar, and tea in the fertile volcanic soil, bringing their Min dialect and their worship of Matsu, goddess of the sea.

228. Jurassic volcanic rocks in Yingshan fault depression are mainly andesite, basalt, dacite , volcanic breccia and tuff.

229. Contemporaneous volcanic activity is represented by basic to intermediate lava and tuff.

230. A lost world populated by fanged frogs, grunting fish and tiny bear-like creatures has been discovered in a remote volcanic crater on the Pacific island of Papua New Guinea.

231. Three Sisters is one of three potentially active volcanic centers that lie close to rapidly growing communities and resort areas in Central Oregon.

232. I had to do an in - class presentation on volcanic rock formation.

233. The Sierra Nevada and the Cascade Mountains meet in Plumas County, and fall color against the grey backdrop of the volcanic rock that covers the region makes for dramatic views.

234. Marilyn's pitted skin, breasts of carved pumice, volcanic thighs, a face of ash.

235. But much about the impact of volcanic ash on jet engines remains unstudied.

236. On the morning of August 24, 79 AD, Mt. Vesuvius overlooking Pompeii suddenly shuddered and spewed out fiery volcanic ash.

237. Volcanic ash silted up the Columbia River 35 miles away.

238. There are many noticeable and well-developed joints in the volcanic crater group in the Changle area(sentencedict.com), and they are unique in shape.

239. Abundant copper material was derived from volcanic rock series ( olivine tholeiite ) in the rift.

240. The volcanic rocks belong to high kalium calc alkalic series and can be divided into andesite, dacite, trachydacite and rhyolite by petrochemical composition.