Geothermobarometry Partioning of Fe, Mg with Temperature: The Garnet-Biotite Geothermometer Fe, Mg have similar ionic radii, therefore volume change small The Garnet ...
SILICATE MINERALS FRAMEWORK SILICATES include Orthoclase (KAlSi3O8), Oligoclase and ... SHEET SILICATES BIOTITE MUSCOVITE SINGLE CHAIN SILICATES include ...
What is a rock? A rock is a combination of minerals. For example: Granite is composed of biotite, quartz, and feldspar. The Rock Cycle The Rock Cycle Igneous and ...
Classification of Minerals. Native Elements minerals ... Amphibole Group. Muscovite. Biotite. These minerals make up more than 90% of the Earth's crust. ...
These minerals include olivines, pyroxenes, amphiboles and biotites. Olivenes. Pyroxene. Amphibole. Biotite. Silicates. Silicate materials make up 96% of the ...
occurs as thin plates or sheets. includes muscovite (light), biotite (dark) silicate ... used in sculptures (alabaster variety) nonsilicate. minerals. Galena ...
pleochroic with one perfect cleavage; strong natural colour masks ... pleochroic with 2 cleavages at 60o or 120o distinguishing it from biotite or pyroxene ...
Polymict breccia. Kink banded biotite, planar fractures in quartz and feldspar (PDFs in quartz) ... sample of carbonatitic breccia (same matrix composition as ...
Here is a photograph and an x-ray fluorescence map of Cs (the La line) of a ... photograph of biotite cross-section. Cs fluorescece map of biotite cross-section ...
New Views of an Old Planet (scales) Microbial Environments: focus on aqueous ... ( amphibole/hornblende) Sheet (mica: biotite or muscovite) 3D-framework ...
a natural, usually inorganic solid that has a characteristic chemical ... muscovite, biotite, calcite, dolomite, halite, gypsum, and ferromagnesian minerals. ...
Isograds for a single shale unit ... Degrades to almandine (garnet at higher T) staurolite muscovite quartz = almandine aluminosilicate biotite water ...
Sample Rock Types. Some may be useful for HW 8 (Due March ... Pink Granite from Llano Uplift, TX. Interlocking feldspar (pink), quartz (white), biotite (black) ...
Down-Dip lineation (Lok) perpendicular to bedding cleavage intersection (L1) S1- principle cleavage. S2m mineral fabric defined by aligned biotite. What we do ...
Oxidation. Oxygen combines with iron-bearing silicate minerals ... 2. The biotite & amphibole will undergo hydrolysis to form clay, and oxidation to form ...
... to La Posta Pluton emplacement, Laramide shallow subduction, and forearc ... pluton emplacement determined from 40Ar/39Ar cooling ages on biotite and ...
What is the difference between magma & lava? Lava is magma above ground. Types of ... It also contains plagiocas, biotite, amphibole, pyroxene, and olivine. ...
METAPELITIC REACTIONS AND FACIES Metapelitic Zones Metapelitic Zones and Facies Aluminosilicate Minerals and Metamorphic Facies Greenschist Facies Chlorite and ...
Geothermobarometry How do we know P and T? Geothermobarometry Need min. at equilibrium Good barometer rxn vs. good thermometer rxn Which has large DV and which has ...
Title: Lecture notes on Metamorphic Petrology Author: Dr. Mahrous Abu El-Enen Last modified by: name Created Date: 9/16/2004 8:52:09 PM Document presentation format
The ROCKS you need to know. granite. diorite. gabbro. dolerite ... Gabbro. Coarse-grained; darker under PPL and brightly coloured under XPL; main minerals ...
The Velay dome (French Massif Central): Melt generation and granite emplacement during orogenic evolution P. Ledrua,*, G.Courriouxa, C. Dallainb, J.M Lardeauxc, J.M ...
Mount Pelee 1902 St. Pierre Mount Pelee 28,000 killed 1 survivor 17 ships in the harbor destroyed Ash cloud swept through town at 125MPH Event lasted 5 minutes
Ch 5 Weathering & Erosion Objectives Briefly contrast weathering and erosion. Contrast chemical and mechanical weathering. List and describe the types of ...
Geothermobarametry Gibbs-Duhem equation describes how T and P changes affect free energy (as chemical potential) Reaction with big DSR change a good barometer ...
Background Connecting Pakistan to China Through Karakoram mountains Construction ... sedimentary Coloured Symbols igneous rocks Black symbols metamorphic ...
Yet they are not accurate, because they do not hit the bulls-eye. b. ... but they are accurate, because the average of the shots is near the bulls-eye. c. ...
The Phase Rule in Metamorphic Systems Consider the following three scenarios: C = 1 (Al2SiO5) F = 1 common F = 2 rare F = 3 only at the specific P-T conditions of the ...
Mineral Identification Practice Tutorial ESRT Mineral Chart Metallic Minerals Non-Metallic Minerals Non-Metallic Minerals Non-Metallic Minerals Mineral Identification ...
Aluminosilicate Minerals 3 polymorphs of Al2SiO5 are important metamorphic minerals Topaz Aluminosilicate mineral as well, one oxygen substituted with OH, F Al2SiO4 ...
Measuring T and P in Rocks No Pure Geothermometers or Geobarometers All mineral equilibria depend on T, P and other variables. Some minerals (staurolite) appear over ...
Metamorphic Facies: Reminder of principle metamorphic changes: 1/ Recrystallization changes in grain size responding to T & P changes. Coarsening of grains is common ...