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所谓“蟒岭”地区,乃1/5万北宽坪幅、三要街幅以及官坡西半幅所指的地区。其地处秦岭山脉东段,属陕西省洛南、丹凤及商县辖内,东跨河南省界,总计面积约一千余平方公里(图1)。按地质结构,测区分为三个单元。贯穿东西的中部断陷带,出露古生界变质海相火山喷发一正常沉积岩及中生界轻变质至未变质的陆相碎屑岩。此带还分布有加
The so-called “python ridge” area is 1/5 million wide and north wide, three and a half as wide as the official slope area. It is located in the eastern section of the Qinling Mountains, belonging to Luonan, Danfeng and Shangxian within the jurisdiction of Shaanxi Province, east across Henan Province, a total area of about 1000 square kilometers (Figure 1). According to the geological structure, the test area is divided into three units. Throughout the central fault depression belt, exposed the Paleozoic metamorphic marine volcano erupted a normal sedimentary rocks and Mesozoic light metamorphic to the metamorphic terrigenous clastic rocks. This band is also distributed plus