of sedimentary rocks at Green Mountain?Can someone please explain this question? What type of plutonic igneous rock body is buried beneath the layers?
The area if in Vermont, contains both igneous granitoids and pegmatites plus metamorphics. Where specifically-- under what coordinates? Counsult an online geological map of Vermont at %26lt;%26gt;http://geology.about.com%26gt;
The quickest way to answer this is to look at your lecture notes--you did keep notes, right?Can someone please explain this question? What type of plutonic igneous rock body is buried beneath the layers?
Do you want the question explained, or do you just want the answer?
The answer is a granitic batholith that metamorphosed sand into quartzite.
';...Ct Tintic Quartzite (Lower Cambrian) 鈥?Mostly tan-colored, medium- to fine-grained,
prominently bedded quartzite with gray-green phyllite beds in upper 500 feet (150 m) and
conglomerate zones in lower 1000 feet (300 m); exposed in the quadrangle as large
blocks within Tertiary lava flows; it is inferred that these large blocks were included in
volcanic units as landslides from caldera walls after voluminous pyroclastic eruption or
as blocks rafted in the upper apophyses of intrusions; thickness of 2000+ feet (610+ m)
shown on cross section. ...';
http://geology.utah.gov/maps/geomap/7_5/鈥?/a>
Edit: Sorry - wrong state, but the answer is still the same.
http://www.wsgs.uwyo.edu/Topics/Gemstone鈥?/a>
Which Green Mountain? There are a number of mountains with that name. Which state is it in?
Green Mountain in Wyoming is a lacolith. Here is a link to an article that told me that GM was that, but it does not say what particular igneous rock forms the lacolith.
http://www.slackpacker.com/igneous.html
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment