| 九曲练溪十里画廊--缙云仙都火山地貌景观 |
| |
| 引用本文： | 俞云文,王达钦.九曲练溪十里画廊--缙云仙都火山地貌景观[J].浙江国土资源,2001,17(1):77-80. |
| |
| 作者姓名： | 俞云文 王达钦 |
| |
| 作者单位： | 1. 浙江省地质调查院,萧山,311203
2. 仙都风景旅游管理局,缙云,321401 |
| |
| 摘 要： | 缙云仙都是一个以火山地质景观为特色,融田园风光与人文史迹为一体的国家级重点风景名胜区.不同时代,不同类型的火山岩和火山活动,形成不同的火山地貌,构成一幅九曲练溪的十里画廊.本文特别介绍了新近发现的一个小型火山颈--步虚山凌虚洞火山通道,这是一个难得多见的深及地下60多m火山通道自然剖面.
|
| 关 键 词： | 火山地貌景观 古火山 白垩纪 缙云仙都 |
| 修稿时间： | 2000年7月20日 |
The Landscape of Volcanic Geology in Xiandu of Jinyun County |
| |
| Authors: | Yu Yun-wen |
| |
| Abstract: | Xiandu"of Jinyun county is an important scenic spot of the nation characterized by its landscape of volcanic geology and integrated the pastoral scenery with historic relics.Different types of volcanic rocks formed different scenery and landscape.The Dinghufeng Peak,170m high,towers over the Haoxi cor Lianxi River,and the Lingxu Cave is a volcanic conduit split by joints and fissures.Studies revealed that the peaks,caves and canyons were formed under a special geological background,which was chara ctenzed by gentle occurrences of rock beds,developed vertical joints and big lithological variations between different ore beds(rhyolite and tuff).Isotopic dating showed that the rhyolite in this area was formed in late stage of Lower Cretaceous (about 110Ma) and the leishan dorgalite was formed in Miocene Epoch of Neogene(9.3Ma). |
| |
| Keywords: | Volcanic landscape Paleovolcano Cretaceous Period Jinyun county of Zhejiang Province |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
