斯利克罗克地区位于科罗拉多州圣米古埃尔郡和多洛雷斯郡西部,面积约1470平方公里(图1)。在斯利克—罗克区出露了二迭纪至白垩纪的沉积岩石(表1);下伏的较老沉积岩则堆积在侵入岩和变质岩之上,后者可能为前寒武纪基底岩系。沉积岩出露的最大厚度约为1430米,而未出露的岩系总厚度约4000米。在该区已知仅有一个侵入岩体,但在东面不远处有几个岩墙和岩床,它们显然与圣胡安地区的喷 The area of ​​Slick Rakke is located in San Miguel, Colorado, and western Dolores County and covers an area of ​​approximately 1470 square kilometers (Figure 1). Sedimentary rocks from the Cretaceous to the Cretaceous were exposed in the Slik-Roque area (Table 1); the underlying older sedimentary rocks were deposited on intrusive rocks and metamorphic rocks, which may be Precambrian basement Rock series. The maximum thickness of sedimentary rocks exposed is about 1430 meters, while the unexposed rock series total thickness of about 4000 meters. It is known that there is only one intrusive rock in this area, but there are several dikes and bedrock not far to the east, which are clearly associated with the spray of San Juan