r the Geologic History of Stern Pennsyly a geologkc map of Pennsylvania below. T
ID: 296519 • Letter: R
Question
r the Geologic History of Stern Pennsyly a geologkc map of Pennsylvania below. The green-coloeed areas are cx 190 million years old. Pakomic and Precambrian rocks are more than 252 Date ACTIVITY Name: Review FIGURE S.TS. Then seudy che portion million-year-old Mcsooic sand and mud red-colored arcas are bodies of uale alour wcre years old years old and coloeed pale bwown. dd pahae were depusited in lakos, sireams, and fields of a long, s sedimentary A. Based on their geometries (as viewed from above, in map view), what kind of igncous bodies on the map are B. Based on their geometries (as viewed from above, in map view), what kind of igneous bodies on the map are labeled B (moe than one answer is possible)? C REFLECT& DISCUSS If years ago (fwhen the bodics of igneous rock were laval) then what dhe wou streams, lakes, and fields? Explain your reasoning you could have seen the landscape that existed in this part of Pennsylvania about 200 million uld you have seen on the landscape besides valleys 152Explanation / Answer
Answer
Activity (5.9)-
(A) Based on geometries in given map A is indicated as 'Dyke'.
Explanation - because its showing vertical cut features.
(B) In given map 'Sills' is indicated as (B).
Explanation - Because its showing horizontal layering.
(C) Pillow structure could found in this region.
Activity (5.7)-
(A) Higher temperatures associated with mafic and intermediate magmas.The discontinuous branch describes the formation of the mafic minerals olivine, pyroxene, amphibole, and biotite mica.In discontinuous series. At a certain temperature a magma might produce olivine, but if that same magma was allowed to cool further, the olivine would "react" with the residual magma, and change to the next mineral on the series like Pyroxenes.
(B) large crystal because of its zoning.
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