论文标题
El Bahr:前瞻性影响火山口
El Bahr: A Prospective Impact Crater
论文作者
论文摘要
这项初步调查涉及发现位于萨哈拉沙漠以南的一条身份不明的火山口,埃及的El Bahr和Qaret El Allafa。在撒哈拉沙漠的地形分析中,发现了身份不明的火山口(以后命名为El Bahr火山口)。 El Bahr火山口位于西南吉萨(Al-Jiza giza),距离约327米,边缘的边缘约为1,027米,占据了约83,981平方米的表面积。初步光谱和地形分析揭示了由外星人外星人的高速事件产生的撞击火山口的特征,包括碗形的边缘和火山口壁。但是,从Landsat图像可以看到近端和/或远端喷射。此外,众所周知,埃尔巴尔玄武岩富含正py二氧烯而周围的玄武岩却不是最合理的解释,这是最合理的解释。 El Bahr火山口未在地球影响数据库中索引,对非洲的影响结构的分析并未将其识别为已确认,提议或违反的撞击火山口。因此,与开罗大学合作,已经组织了一场探险,以对El Bahr火山口进行现场调查,以确定是否存在平面形成,破碎的锥和冲击变质和或其他陨石特性。
This preliminary investigation addresses the discovery of an unidentified crater located south of the Sahara Desert between Qaret Had El Bahr and Qaret El Allafa, Egypt. The unidentified crater (hereafter tentatively named El Bahr Crater) was discovered during a terrain analysis of the Sahara Desert. El Bahr Crater is located Southwest Al-Jiza Giza and is approximately 327 meters across, has a rim with a circumference of approximately 1,027 meters, and occupies a surface area of approximately 83,981 square meters. Preliminary spectral and topographic analysis reveal features characteristic of an impact crater produced by a hypervelocity event of extraterrestrial origin, including a bowl-shaped rim and a crater wall. No proximal and/or distal ejecta, however, are visible from Landsat imagery. Moreover, the geomorphic features, along with the fact that the El Bahr basalts are known to be rich in orthopyroxene while the surrounding basalts are not, imply an impact as the most plausible explanation. The El Bahr Crater is not indexed in the Earth Impact Database, and an analysis of impact structures in Africa did not identify it as either a confirmed, proposed or disproved impact crater. In collaboration with the University of Cairo, therefore, an expedition has been organized to conduct an in-situ investigation of El Bahr Crater, to ascertain if planar formations, shatter cones, and shock metamorphic and or other meteoritic properties are present.