Impact Volcanism of Elgygytgyn Crater(Central Chukotka,Russia):Problems of Genesis

摘要：

In Central Chukotka in Northeast Russia there is Elgygytgyn Crater Lake, 175 m deep and 12 km wide. The crater is in the basin about 17 km in diameter with steep underwater walls. On the Elgygytgyn basin slopes and beyond it, the impact rocks—impactites, impact glasses, breccias of impactites with volcanic fragments of rocks of different composition, and bombs of glass—were found. Extensive investigations of geological structure of Elgygytgyn caldera, petrological-geochemical study, and isotopic investigations were carried out, and geochronology of impactites, breccias of impactites, and glasses was studied with different methods.

关键词： impactites impact volcanism crater Elgygytgyn

作者: Vladimir G. Sakhno Guoming Liu

作者单位: Far East Geological Institute, Far Eastern Branch - Russian Academy of Sciences Vladivostok, Russia Changbaishan Volcano Observatory, Earthquake Administration of Jilin Province, Antu, China

会议类型: 国际会议

会议名称: The 6th International Maar Conference(IMC)(第六届国际玛珥会议)

会议地点: 长春

会议语种:英文

页码: 81-82

在线出版日期: 2016-07-30（万方平台首次上网日期，不代表论文的发表时间）