A Contribution to the Geology of the Pre Cambrian Igneous Rocks of the Fox River
A Contribution to the Geology of the Pre Cambrian Igneous Rocks of the Fox River
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In our eReader you can find the full English version of the book. Read A Contribution to the Geology of the Pre Cambrian Igneous Rocks of the Fox River Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Contribution to the Geology of the Pre Cambrian Igneous Rocks of the Fox River
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Like the pheno- crysts these fragments are flattened in the plane of the cleavage, although their parallel arrangement in this plane is not so com- plete as that of the phenocrysts. This incomplete orientation is especially true of some of the larger fragments. The fragments have been subjected to as much deformation as the normal rock, and evidence x the fact that they were present in the rhyolite be- fore the mashing process began. They are scattered promiscu- ously through the formation, and... are not associated with any zone of faulting nor with any foreign rock. While the evidence of the extrusive origin of this rock is not conclusive, yet from its analogy with the other rhyolite outcrops, and from the evidence of the fragments, the Berlin rock is believed to be a surface rock like the other rhyolite outcrops of the region.
While deformation of the rhyolite is chiefly that of mashing, there was a concomitant development of a system of fractures -and joints. The deformation is in the zone of combined flowage and fracture, as defined by Prof.
What to read after A Contribution to the Geology of the Pre Cambrian Igneous Rocks of the Fox River?
You can find similar books in the "Read Also" column, or choose other free books by Samuel Weidman to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Like the pheno- crysts these fragments are flattened in the plane of the cleavage, although their parallel arrangement in this plane is not so com- plete as that of the phenocrysts. This incomplete orientation is especially true of some of the larger fragments. The fragments have been subjected to as much deformation as the normal rock, and evidence x the fact that they were present in the rhyolite be- fore the mashing process began. They are scattered promiscu- ously through the formation, and... are not associated with any zone of faulting nor with any foreign rock. While the evidence of the extrusive origin of this rock is not conclusive, yet from its analogy with the other rhyolite outcrops, and from the evidence of the fragments, the Berlin rock is believed to be a surface rock like the other rhyolite outcrops of the region.
While deformation of the rhyolite is chiefly that of mashing, there was a concomitant development of a system of fractures -and joints. The deformation is in the zone of combined flowage and fracture, as defined by Prof.
What to read after A Contribution to the Geology of the Pre Cambrian Igneous Rocks of the Fox River?
You can find similar books in the "Read Also" column, or choose other free books by Samuel Weidman to read onlineMoreLess
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