• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Remote sensing for environmental monitoring, GIS applications, and geology IX >ROCK DISCRIMINATION AND GEOLOGICAL MAPPING OF BASEMENT ROCKS AT GABAL GHARIB AREA NORTH EASTERN DESERT OF EGYPT WITH APPLICATION OF LANDSAT ETM AND EGYPTSAT-1 DATA
【24h】

ROCK DISCRIMINATION AND GEOLOGICAL MAPPING OF BASEMENT ROCKS AT GABAL GHARIB AREA NORTH EASTERN DESERT OF EGYPT WITH APPLICATION OF LANDSAT ETM AND EGYPTSAT-1 DATA

机译：利用LANDSAT ETM和EGYPTSAT-1数据在埃及东北沙漠北部盖尔哈里卜地区的岩石判别和地质填图。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Gabal Gharib area comprises Late Proterozoic Precambrian basement rocks of metamorphic and magmatic assemblages uncomfortably overlain by Miocene-Holocene sedimentary rocks. The calc-alkaline metamorphosed volcanic rocks are the main rock varieties forming the exposed metamorphic assemblage extruded by Dokhan volcanics and intruded by syn to late to post tectonic magmatic intrusions of gabbro-diorite, tonalite-granodiorite (Gl), monzogranites-alkali feldspar granites (G2) and alkaline riebeckite granites (G3). Different band ratio ETM images, Landsat ETM-Egyptsat-1 fused image data with the spectral signature characterizations together with the data of field study were applied to discriminate these different basement rock units. Four granitic varieties as well as the metamorphosed older volcanics and younger Dokhan-type volcanics are well discriminated. This study revealed that the Landsat ETM- Egyptsat-1 fused band ratio image (7/4, 3/7, 4/5) is the best to discriminate the exposed basement rocks and the structural features at Gabal Gharib area.
机译：加巴尔加里卜地区由变质和岩浆组合的晚元古代前寒武纪基底岩石覆盖，中新世-全新世沉积岩令人不快。钙碱性变质火山岩是形成裸露的变质组合的主要岩石变种，这些变质组合由Dokhan火山岩挤压而成，并由同生代侵入到晚，后到晚的构造岩浆侵入辉长岩-闪长岩，斜长石-闪长闪长岩（Gl），单长花岗岩-碱长石花岗岩（ G2）和碱性里贝克石花岗岩（G3）。使用不同的带比率ETM图像，具有光谱特征的Landsat ETM-Egyptsat-1融合图像数据以及现场研究数据来区分这些不同的基底岩石单元。四个花岗岩变种以及变质的较老的火山和较年轻的Dokhan型火山被很好地区分。这项研究表明，Landsat ETM-Egyptsat-1融合带比率图像（7 / 4、3 / 7、4 / 5）是区分Gabal Gharib地区裸露的基底岩石和结构特征的最佳方法。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号