Metamorphic rocks form when other rocks are subjected to heat and pressure, causing their mineral composition and texture to change. Heat sources include magma and Earth's interior, while pressure results from tectonic plate movement or overlying rock layers. There are two types of metamorphism: contact metamorphism near magma intrusions and regional metamorphism over large areas during mountain building. Metamorphic rocks are either foliated with parallel mineral bands like slate, phyllite, and schist, or non-foliated like marble and quartzite.
Definition, metamorphism.
limits and type of metamorphic agents.
Metamorphic processes.
Types of Metamorphism
Classification of metamorphic rocks and textures of metamorphic rocks
Mineral assemblages and Metamorphic grade and facies of metamorphic rocks.
Graphic representation of metamorphic mineral parageneses.
This lesson discusses what minerals and rocks are. It tackles various types of minerals and rocks. It discusses the rock cycle and how it produces the different kinds of rocks on our planet.
metamorphic rocks and their distinguishing features-megascopic and microscopic study of gneiss, schist, quartzite, marble and slate
Properties and characteristics and uses of metamorphic rocks
Definition, metamorphism.
limits and type of metamorphic agents.
Metamorphic processes.
Types of Metamorphism
Classification of metamorphic rocks and textures of metamorphic rocks
Mineral assemblages and Metamorphic grade and facies of metamorphic rocks.
Graphic representation of metamorphic mineral parageneses.
This lesson discusses what minerals and rocks are. It tackles various types of minerals and rocks. It discusses the rock cycle and how it produces the different kinds of rocks on our planet.
metamorphic rocks and their distinguishing features-megascopic and microscopic study of gneiss, schist, quartzite, marble and slate
Properties and characteristics and uses of metamorphic rocks
EARTH MATERIALS AND PROCESSES
Topic: Classification of Rocks / Types of Rocks
Senior High School | Earth and Life Science
Learning Competency: Classify rocks into igneous, sedimentary, and metamorphic. (S11/12ES-Ib-10)
Senior High School | Earth Science
Learning Competency: Classify rocks into igneous, sedimentary, and metamorphic. (S11ES-Ic-6)
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EARTH MATERIALS AND PROCESSES
Topic: Classification of Rocks / Types of Rocks
Senior High School | Earth and Life Science
Learning Competency: Classify rocks into igneous, sedimentary, and metamorphic. (S11/12ES-Ib-10)
Senior High School | Earth Science
Learning Competency: Classify rocks into igneous, sedimentary, and metamorphic. (S11ES-Ic-6)
Please LIKE / FOLLOW and SHARE my other social media accounts.
Facebook: https://www.facebook.com/Simple-ABbieC-131584525051378/
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Youtube:
http://tiny.cc/SimpleABbieC
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Slideshare:
https://www.slideshare.net/AbbieMahinay
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Blogger:
https://simpleabbiec.blogspot.com/?m=1
The southern Indian granulite terrane is known for granulite - facies rocks which is formed during the ‘Pan-African orogeny.
The region is composed of Neoproterozoic to Cambrian crustal blocks, dissected by large-scale shear zones (Palghat-Cauvery and Achankovil).
The Palghat-Cauvery Shear Zone System (PCSZ), separates the terrane into two parts, Archean Dharwar Craton in the north and the Neoproterozoic Madurai Block in the south.
The southern margin of this block is defined by the Achankovil Shear Zone.
Geology of the study area
The Achankovil Shear Zone (ACSZ) is major lineament of 8-10 km width and >100 km length.
The rocks in the zone display a prominent NW-SE trending foliation with steep dips to southwest.
Estimation of pressure and temperature (P-T) of this lithology was first carried out by Santosh (1987) based on conventional geothermometers and mineral equilibrium, that gave 700-800◦ C at 5.5-7.0 kbar.
Later study done by Nandakumar and Harley (2000) which is slightly higher 925 ± 20◦ C at 6.5-7.0 kbar .
3.1. Grt- Opx- Crd Gneiss
The Grt-Opx-Crd gneiss is a coarse-grained, granulite-facies rock with a probable pelitic protolith.
The mineralogy of a representative sample (KR19-5G1) is plagioclase (30-40%), ortho-pyroxene (20-30%), garnet (10-20%), K-feldspar (10-20%), quartz (5-10%), and cordierite (2-5%) with accessory of biotite, spinel, and sillimanite (Fig. 2a).
Garnet is very coarse-grained (3-6 mm) ,subidioblastic, and contains numerous fine-grained inclusions of sillimanite (0.05-0.2 mm), biotite (0.05-0.4 mm), spinel (0.05-0.1 mm), and quartz (0.05-0.1 mm).
The most significant feature of this rock is the direct contact relation of fine grained spinel and quartz (Spl + Qtz), which occur only as inclusions in garnet.
Spl + Qtz association has been regarded as one of the indicators for decompression at UHT conditions. This is the first finding of such an assemblage from the ACSZ.
Metamorphic rocks process of formation 2014aalleyne
S6E5. Students will investigate the scientific view of how the earth’s surface is formed.
c. Classify (metamorphic) rocks by their process of formation.
Surfaces & shapes for the kitchen and bath. Manfacturer of Cast Polymer products ranging from kitchen countertops to elegant whirlpools, soaking tubs, tub surrounds, vanity tops with integral bowls, windowsills, standard shower bases, orbases that can be custmized to meet your specifications or ADA specifications, shower walls, soap/shampoo holders, gas furnace faces and hearths. What can be imagined...can be created.
Metamorphic Rocks ( Definition - Classification - Common Rocks ) Muhammad Mamdouh
presented for Dr | Magdy Basta
Faculty of petroleum and mining engineering, Suez University
Physical Geology Course ( 2016 - 2017 )
presented by : G7 - Members
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This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
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2. Metamorphic Rock
Metamorphism means to “change form”.
Rock can change when it undergoes heat and pressure.
Rocks can change into new, different rocks after heat
and pressure.
The original rock (before the change) is called the
parent rock.
3. Metamorphic Rock: Heat and pressure from where?
Where does the heat and pressure come from?
Heat comes from magma and Earth’s interior.
Pressure comes when tectonic plates converge or
squeeze together.
Also from the weight of layers of rock stacked on
top of one another.
4. Metamorphic Rock: Contact Metamorphism
There are 2 major types of metamorphism
Contact Metamorphism
Regional Metamorphism.
• Contact Metamorphism (Heat)
• Magma comes in “Contact” with rock
• The rock does not melt, but its mineral composition does
change.
5. Metamorphic Rock: Regional Metamorphism
Regional Metamorphism (Heat and Pressure)
Tectonic plates converge creating pressure.
Regional means over a large area (km’s)
Occurs often when mountains are forming.
• Rock changes texture and mineral composition during
Regional Metamorphism
7. Metamorphic Rock: In what ways do they change?
1. Texture
Mineral grains are rearranged, more coarse, flat, and more
dense.
The texture of the rock changes as the minerals line up in stripes.
• Rock before
Regional
Metamorphism
• Rock after
Regional
Metamorphism
9. Metamorphic Rock: In what ways do they change?
2. Mineral Composition
Existing minerals recrystallize into new, slightly
different minerals.
• Example: When a
rock undergoes
metamorphism,
minerals like clay
turn into larger flaky
ones like mica.
10. Metamorphic Rock: Two major types
There are 2 major types of metamorphic rock
Foliated Metamorphic Rock
Non-Foliated Metamorphic Rock
11. Metamorphic Rock: Two major types
FOLIATED METAMORPHIC ROCKS
Have visible parallel bands of mineral grains.
Shale turns into Slate
Slate turns into Phyllite
Phyllite turns into Schist
Schist and Granite turns into Gneiss
Low grade
Metamorphism
High grade
Metamorphism
17. Metamorphic Rock: Two major types
NON-FOLIATED METAMORPHIC ROCKS
DO NOT have visible parallel bands of mineral grains.
Minerals do not take on a parallel alignment.
Sandstone turns into Quartzite
Limestone turns into Marble
