Essay: Describe, using appropriate examples, how basaltic and granitic magmas are generated, the different tectonic environments in which these processes occur, and the type of rocks formed as a result.
Thin sections: Describe the thin sections ‘super 3’ and ‘super 7’. Refer to the short guide I have written to help you. These sections are in an envelope in my department pigeon hole (outside reception, on the left) – please be very careful with them and put them back in the envelope and back in my pigeon hole after you have finished working with them.
Remember that after identifying phases you need to decide what type of rock you are looking at, and give a summary of its history.
Thin section: Describe rock specimens and thin sections I5 and I6. Refer to the short guide I have written to help you.
Question sheet 2 [no need to hand in]: Work through question sheet 2 from Rich’s ‘What is the Earth made of?’ course.
Long-format answer: What is the evidence that lithospheric plates deform only at their boundaries? Why do fracture zones follow small circles?
Calculation question: Attempt the isostasy question in the 2011 Tripos Part 1A practical exam (it is section 2, parts a-c).
Complete the answer on clean sheets of A4 rather than trying to fit it into the text boxes that come with the exam paper. You can download past tripos papers from the NST Part 1A Earth Sciences page on Moodle, just follow the ‘past exam papers’ link from the navigation pane on the left (or follow this link). Note that the structure of the 1A Earth Sciences exams was different before 2012, read your course guide for more details (or look at the most recent exam papers), but some of the older questions set are often still relevant and useful for revision.
Map exercise: Complete map exercise 2 from the examples booklet.
Long format answer: Describe the stratigraphy at Ketton Quarry. What is the evidence for environmental change recorded in the rocks you saw?
Map exercise: Complete map exercise 1 from the examples booklet.
1 page answer only: Make an information table on the distinctions between sedimentary, igneous and metamorphic rocks. Use columns for the different rock groups and rows for the different distinguishing factors. Put descriptive factors first then process factors later. Incorporate diagrams if appropriate.
This series of three lectures moves from considering the dynamics of magma storage in the crust, the release of magmatic fluids and their interaction with existing country rock, to the dynamics of volcanic eruptions. The first and third lectures are followed by practicals combining a mixture of calculation and thin section work, the second lecture is followed by a seminar in the BPI fluid dynamics labs from Jerome Neufeld.
Part of: Core Petrology
Run by: Oliver Shorttle
Location: Harker 1 (for the first and third lectures, second lecture in the Marine Wolfson lecture theatre, Bullard labs)
When: Wednesday 15th February, Friday 17th February, Monday 20nd February.
Supervision sign up
This Part III course on Planetary Chemistry and Evolution builds on fundamental topics in petrology and geochemistry and applies these to a range of current research topics in planetary chemistry and cosmochemistry. Specific topics that will be covered are detailed are given in the course description (Moodle). This option will be run as a seminar course and discussion group, where students will take it turns to prepare seminars based on a series of pre-defined topics and suggested reading materials.
Run by: Helen Williams, Oliver Shorttle
Location: Harker 2
When: First four weeks of Lent term on Tuesday (16.00-18.00) and Friday (14.00-16.00).
Fill in the google form to indicate which supervisions you wish to attend (choose from between 0 to 2 supervisions).