Josh S. A Level Geology tutor, GCSE Geology tutor, GCSE Geography tut...
£20 - £22 /hr

Josh S.

Degree: Earth Sciences (Masters) - Durham University

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|  53 completed tutorials

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About me

Hello! I'm Josh and thank you for visiting my profile. I'm an undergraduate, currently in my third year, studying Earth Sciences (Geology, BSc) at Durham University. During my first year of A-level studies, I was tutored for Maths, this was incredibly helpful and I saw how one to one tutoring provides personalised experience and knowledge, often lost in the larger classroom. To share the help I received, I mentored 2 AS-level students in Geology during my second year. Both students expressed how much thankful they were for the support and felt that I improved upon their understanding of the subject. I am a friendly and approachable person willing to help in your education anyway that I can.

About my sessions

The tutorial sessions are catered to your needs and what you want to gain from a session. I want to make tutorials fun and engaging, to promote easy understanding and retention of material. Learning is not a simple exercise and is not the same for everyone; Geology promotes understanding in many ways within different areas of the subject, meaning people of all learning habits and abilities can appreciate it. There are a number of exam boards and syllabuses within science, the content of which vary greatly. If you would like to message me with a question or material from a specific syllabus to make sure I can help, then please do so. I look forward to hearing from you and good luck!

Subjects offered

SubjectQualificationPrices
Geology A Level £22 /hr
Physics A Level £22 /hr
Geography GCSE £20 /hr
Geology GCSE £20 /hr
Maths GCSE £20 /hr
Physics GCSE £20 /hr

Qualifications

SubjectQualificationLevelGrade
GeologyA-levelA2A
PhysicsA-levelA2A
MathsA-levelA2B
Disclosure and Barring Service

CRB/DBS Standard

No

CRB/DBS Enhanced

No

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Questions Josh has answered

Describe how regional metamorphism of shale produces a sequence of rocks and minerals.

Metamorphism is a process by which preexisting rocks can be altered in composition or structure, to form a new rock. Regional metamorphism occurs in areas of above average pressures and temperatures, such as subduction zones. Shale is a sedimentary rock, which has a varied chemical composition...

Metamorphism is a process by which preexisting rocks can be altered in composition or structure, to form a new rock. Regional metamorphism occurs in areas of above average pressures and temperatures, such as subduction zones. Shale is a sedimentary rock, which has a varied chemical composition, and it contains platy clay minerals that can align to pressure (associated with regional metamorphism).

 

Low-grade metamorphism (low pressure and temperature) of shale forms slate. Distinguishable by platy cleavage, where mica crystals align perpendicularly to pressure as well as the index mineral Biotite.

 

Medium-grade metamorphism (medium pressure and temperature) of shale forms schist. Schist is distinguishable by the index minerals Kyanite and/or Garnet, it may also show slight banding of dark/light minerals.

 

High-grade metamorphism (high pressure and temperature) of shale forms Gneiss. Gneiss shows very distinct banding between light and dark minerals, which have separated due to different compositions and has the index mineral Sillimanite.

 

It is important to point out that index minerals show the minimums pressure and temperatures the shale must have experienced. A metamorphosed shale may contain Biotite and Garnet (two minerals formed at different P+T), this shows that metamorphosed shale must have at least experienced medium grade metamorphism.

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