ASM 5
Salt
Salt
Kartei Details
Karten | 28 |
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Sprache | English |
Kategorie | Naturkunde |
Stufe | Universität |
Erstellt / Aktualisiert | 11.01.2013 / 11.01.2013 |
Weblink |
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two main controls on large scale evaporites
atmosphere circulation
tectonics (eg. south americal and africa, cretaceous)
modern day evaporite examples
aral sea
death valley
3 key points of salt rehology
2 extra properties
weakness
ductility
incompressibility
impermeable
conductive
velocity in salt
4400m/s
what pressure does salt become ductile
2200kg/m3
three types of loading that can drive salt flow
gravitiational loading (hydraulic head)
displacement loading
thermal loading
conditions of active diapirism in extensional setting
can only take place if salt is less dense than overburden
progression of diapirism type depends on ...
(3)
avilability of salt
sedimentation rate
total amount of extension
key differnece between piercement during shortening and passive piercement
bouyancy is main driver in passive, shortening is main driver in active
suture above salt pedestal is called
feeder weld
four types of salt sheet advance
extrusive
open toed
thrusting
salt wings
falling down slope diaprism words to describe stretching and compression
updip extension and downdip contraction
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