We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Nobody downloaded yet

Stromatic migmatites - Term Paper Example

Comments (0) Cite this document
Summary
It is formed when rock such as gneiss i.e. metamorphic rocks melt and crystallize into an igneous rock hence becoming o mixture of the unmelted metamorphic rock and the recrystallized rock known as diatexites. Therefore,…
Download full paperFile format: .doc, available for editing
Polish This Essay98.7% of users find it useful
Stromatic migmatites
Read TextPreview

Extract of sample
"Stromatic migmatites"

Download file to see previous pages evidence suggests that the stromatic coarse-grained rocks are formed by most of the fluid-present accompanied by equilibrium melting of the dioritic gneiss and by a crystallization dominated feldspar. Partial melting in the middle to lower crust may take place in response to dehydration of hydrous minerals such as muscovite, biotite, and amphibole or influx of externally derived hydrous fluids. (Mehnert, 1998) Geochemical evidence suggests that the melts may undergo a process leading to formation of various indigenous rocks, either in situ or while migrating from the site of melting hence migmatites will form in regions of high structural forces, thickened crust and a number of field and experimental studies have indicated a significant potential for melt migration during deformation.
 Despite several recent studies regarding the structure and formation of stromatic migmatites, a number of questions regarding the origin of these rocks remain unanswered. These unresolved issues include the role of fluid during partial melting i.e. whether the abundant coarse-grained rocks represent in situ or externally derived melts, the extent to which coarse-grained rocks compositions were modified by fractionation, and the possible relationships between melting, melt migration and the forces due to their origin. (Raymond, 2002) The purpose of this paper is to present an analysis of data from both the origin and chemical composition in an attempt to explain the geological structure of stromatic migmatites and thereby contribute to a better understanding of the causes and consequences of partial melting and other large collisional forces resulting in the formation of these structures.
The two types of migmatites i.e. stromatic and patch migmatite are distinguished based on the morphology of the constituent grains and type of host rock. Stromatic migmatites are typically light grey, quartz monzodioritic to greenish gray- pinkish gray coarse-grained rocks while patch ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Stromatic migmatites Term Paper Example | Topics and Well Written Essays - 2500 words”, n.d.)
Stromatic migmatites Term Paper Example | Topics and Well Written Essays - 2500 words. Retrieved from https://studentshare.org/physics/1638444-stromatic-migmatites
(Stromatic Migmatites Term Paper Example | Topics and Well Written Essays - 2500 Words)
Stromatic Migmatites Term Paper Example | Topics and Well Written Essays - 2500 Words. https://studentshare.org/physics/1638444-stromatic-migmatites.
“Stromatic Migmatites Term Paper Example | Topics and Well Written Essays - 2500 Words”, n.d. https://studentshare.org/physics/1638444-stromatic-migmatites.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Stone Mountain Ga. and surrounding area
The position of these regions is best explained through the process of plate tectonic collisions of the continents that built the Appalachian over 300 million years ago. All these plate collisions have also caused other mountain formations like Stone Mountain.
8 Pages(2000 words)Essay
Let us find you another Term Paper on topic Stromatic migmatites for FREE!
Contact us:
+16312120006
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us