| 词条 | Waits River Formation |
| 释义 |
| name = Waits River Formation | image = | caption = | type = sedimentary, metamorphic | age = late Silurian to early Devonian | prilithology = limestone | otherlithology = phyllite, schist | namedfor = Village of Waits River (within Topsham) and stream | namedby = C. H. Richardson, 1906[1] | region = New England | country = USA | coordinates = | unitof = | subunits = Standing Pond Volcanic Member | underlies = Bradford Schist | overlies = | thickness = | extent = Vermont, Massachusetts, New Hampshire | area = | map = | map_caption = }} The Waits River Formation is a late Silurian to early Devonian limestone containing lesser amounts of phyllite and schist. The description by the USGS is: Gray quartzose and micaceous crystalline limestone weathered to distinctive brown earthy crust; interbedded and intergradational with gray quartz-muscovite phyllite or schist. Where more metamorphosed the limestones contain actinolite, hornblende, zoisite, diopside, wollastonite, and garnet, and the phyllite and schist, biotite, garnet, and locally andalusite, kyanite, or sillimanite.[2] References1. ^Richardson, C.H., 1906, THE AREAL AND ECONOMIC GEOLOGY OF NORTHEASTERN VERMONT. From the Fifth Report Vermont State Geologist. Argus and Patriot Press, Montpelier, Vermont. 2. ^[https://mrdata.usgs.gov/geology/state/sgmc-unit.php?unit=VTDw%3B0 Waits River Formation], Mineral Resources On-Line Spatial Data 4 : Limestone|Geologic formations of Vermont|Geologic formations of New Hampshire|Geologic formations of Massachusetts |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。