geology test #3 study guide

geology test #3 study guide - Indirect ways to measure. 1....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Indirect ways to measure… 1. weighted lines : rock on string to measure depth 2. sonar : reflects sound from ocean floor 3. satellites : tells us more about ocean floor shape, not depth really *must measure multiple times Major Ocean Provinces… 1. Continental Margin (shelf slope rise) - passive (not associated with plate boundaries) - active (associated with plate boundaries) 2. Deep Ocean Basin 3. Mid Ocean Ridge - deep ocean basin – deepest part of ocean (where plates plunge into mantle) - guyot - shave of surface, allows for cooling to occur - rift valley – where eruptions happen, closer to rift the younger the material - supercontinent clycle rifting and dispersal of one supercontinent is followed by a long period as fragments are reassembled (Wilson Cycle) - seamount – type of deep ocean basin - turbidity currents – deposit sediment to form deep sea fans - orgenesis – the processes producing mountains - sutures – line that separates 2 formally different pieces of crust - terranes – small crustal fragments with different history that adjacent crust - accretion – addition of terranes to continental crust by movement of plates - fault black mtns – can form elongated ridges, and can be very tall - craton –stable places – igneous metamorphic rocks exposed at surface covered by sedimentary rocks Hydrolic Cycle… 1. evaporation – water to water vapor 2. transportation – release of water from plants to atmosphere 3. i nfiltration – filters into rock Stream flow… 1. laminar 2. turbulent – moves sideways and up and down Factors to determine velocity… - gradient - shape - discharge Stream Profile… 1. Head – highest velocity, where the stream begins, highest erosion 2. Mouth – highest discharge - base level – where water is trying to get everywhere equal to by erosion and depositing (ultimate base level changes multiple times) *raising = deposition *lowering = erosion Types of Stream Loads… 1. bed loads 2. suspended loads 3. dissolved loads - capacity – total amount that can be carried - competence – how big of particle stream can carry - alluvium – any size particle carried by a stream
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/17/2008 for the course GEOL 1100 taught by Professor Ruez during the Spring '08 term at Auburn University.

Page1 / 4

geology test #3 study guide - Indirect ways to measure. 1....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online