petrology spring 2012 please grab a syllabus. introductions instructor: dr jasper konter office:...
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PetrologySpring 2012
Please grab a syllabus
Introductions
Instructor: Dr Jasper Konter
Office: GEOL 404a
Office hours: TBA, or by appointment
Phone: x5507
Email: jgkonter@utep.edu *
*Note: Email is the best way to contact me and should provide the most timely response
Course DetailsWhen: MW 8.30-9.20 amWhere: GEOL. 320Course Ref. Number: 23432Prerequisites: At least an introductory Geology classLaboratory: The required lab sections of this class are scheduled for M 9.30-12.20
W 11.30-2.20 or 2.30-5.30 Monday 3.00-5.50 will be canceled
UTEP requires ~10 per lab, so one of the Wed labs will be canceled
TA: Valerie Finlayson, Lauren Storm
Field: see lab schedule…Bring boots, notebook, handlens, hat, etc
Course TopicsTopics for the course:-Placing rocks in tectonic/planetary context-Making igneous rocks-Magmas-Stable minerals and assemblages-Chemical petrology (geochemistry)-Making metamorphic rocks-Metamorphic textures-Metamorphic reactions
Course textbook
Title: Principles of Igneous and
Metamorphic Petrology
Authors: John Winter
Publisher: 2010 edition (2001).
ISBN 0321592573
How will we use it?
• Backup reference to lecture material
(assigned reading)
• Preparation for midterm
NOTE: there may also be some scientific journal
articles as part of the reading material
Course Website
• Website address: http://www.geo.utep.edu/pub/jasper/petrology
• What will be on it:
• Course syllabus & information
• Lecture schedule & assigned reading
• Lecture “ blank notes”
• Lab report due dates
• Movies/animations shown in class
• Class updates/announcements
Blank Notes
• Available at course website (by noon at the latest)
• Contain slide images only (no text)
• Sometimes lengthy text notes will be provided
= notes provided
Attendance & Etiquette
• No official attendance taken, but…….
• Some lecture material not in textbook
• Question of the day
• Class etiquette:
• CELL PHONES OFF
• Please arrive on time (8.30 am) = I will end class on time
• Ask questions!
Grading Policy
• Course components: Question of the Day 7%
Mid-Term Exam 1 20% Mid-Term Exam 2 20% Final Exam 20%
Laboratory 33%
• Letter grade breakdown: A = 90%+; B = 80 – 89%; C = 70 – 79%; D = 60 – 69%; F = < 60
Question of the day
• We will set up a schedule where one student will pose a question to the class about one of the main topics from the last lecture. Rest of the class will turn in their answer, after which the student asking the question will explain the answer
• Correct answer = 1 point; Incorrect answer = 0 points
• Questions will count 7% toward your total grade
• EXTRA CREDIT: By answering all Qs correctly over the entire semester, you can earn up to 3% extra credit
Homework• Regular homework will NOT be assigned, HOWEVER:
• Reports on the labs will have to be turned in for a grade
• NO late reports will be accepted…
• Format: Type it or write neatly, and use proper grammar & punc.
• Working together: Encouraged, however you must turn in your own assignment, using your own words. Any student who fails to follow this rule will receive zero credit for the question, and if the offense is severe, for the assignment.
• Free lab pass: Your lowest lab score will be dropped assuming you turn them all in. If you miss a lab for any reason, that counts as a “0” and that will be the lab that is dropped.
Exams• Two midterm exams• Final
• Make-up/early midterm: • Will not be given except for an excused illness
(doctor’s note required) or family emergency • Anyone with conflicts due to extracurricular
activities must provide at least 2 weeks notice with appropriate signed paperwork
Make-up exam will be substantially more difficult than the exam given to the rest of the class.
• Special Needs? Contact Disabled Student Services
Tentative schedule
Questions ?
Rocks of all kinds atSurface (aka rock cycle)
Weathering – gain H2O here
Erosion
Deposition
CementationSedimentaryRocks
Deeper Burial
Metamorphic Rocks
High pressures and Temp
Melting
IgneousRocks
Volcanism
H2Oloss
Petrology studies rocks and their formation
Magma
Plutonic Rock
Volcanic RockLava
Near or onEarth’s SurfaceCools quickly
Crystallizes atDepth. CoolsslowlyDeep
Shallow
Igneous rocks and their formation
DIFFERENT CONDITIONS AND THEIR CONSEQUENCES
The Earth’s Interior: The Earth’s Interior: where the rocks are madewhere the rocks are made
Crust:Crust:Oceanic crustOceanic crust
Thin: 10 kmThin: 10 km
Relatively uniform stratigraphy = ophiolite suite: Relatively uniform stratigraphy = ophiolite suite: SedimentsSediments pillow basaltpillow basalt sheeted dikessheeted dikes more massive gabbromore massive gabbro ultramafic (mantle)ultramafic (mantle)
Continental CrustContinental CrustThicker: 20-90 km average ~35 kmThicker: 20-90 km average ~35 km
Highly variable compositionHighly variable composition Average ~ granodioriteAverage ~ granodiorite
The Earth’s InteriorThe Earth’s Interior
Mantle:Mantle:Peridotite (ultramafic)Peridotite (ultramafic)
6370
5145
2898
660
410
60220
Crust
MantleMantle
CoreCore
Upper MantleTransition Zone
Inner Core
Depth (km)
LowerMantle
(solid)
OuterCore(liquid)
Upper to 410 km (olivine Upper to 410 km (olivine spinel) spinel) Low Velocity Layer 60-220 kmLow Velocity Layer 60-220 km
Transition Zone as vel. incr. ~ rapidlyTransition Zone as vel. incr. ~ rapidly 660 spinel 660 spinel perovskite-type perovskite-type
SiSiIVIV Si SiVIVI
Lower Mantle has more gradual Lower Mantle has more gradual velocity increasevelocity increase
The Earth’s InteriorThe Earth’s Interior
Core: Core: Fe-Ni metallic alloyFe-Ni metallic alloy
6370
5145
2898
660
410
60220
Crust
MantleMantle
CoreCore
Upper MantleTransition Zone
Inner Core
Depth (km)
LowerMantle
(solid)
OuterCore(liquid)
Outer Core is liquidOuter Core is liquid No S-wavesNo S-waves
Inner Core is solidInner Core is solid
Crust
Mantle
OuterCore
Velocity (km/sec)
0 5 10
1000
2000
3000
4000
5000
6000
Depth (km)
S waves
P waves
InnerCore
Lithosphere
Astheno-sphere
Solid
Liquid
Meso-sphere
S waves
O50.7%
Mg15.3%
Fe15.2%
Si14.4%
S3.0%
Al1.4%
Ca1.0%
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