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Plate tectonics

Part of the Alberta Front Ranges fold -thrust belt north of Highwood Pass. Sawtooth-like Lower Paleozoic carbonates are exposed as flatirons in the hanging wall of a thrust immediately east of Lewis Thrust. Late Jurassic – Early Cretaceous foredeep deposits in the valley floor (mostly covered) were involved in the deformation as the orogenic load migrated eastward. Orogenic transport to the right.
Part of the Alberta Front Ranges fold -thrust belt north of Highwood Pass. Sawtooth-like Lower Paleozoic carbonates are exposed as flatirons in the hanging wall of a thrust immediately east of Lewis Thrust. Late Jurassic – Early Cretaceous foredeep deposits in the valley floor (mostly covered) were involved in the deformation as the orogenic load migrated eastward. Orogenic transport to the right.

Posts about some of the science of plate tectonics and continental drift, oceans and continents, the crust, mantle and lithosphere, plate boundaries, and the people involved in discovery.

 

Bits of North America that were left behind

The Moine Thrust: An idea that unravelled mountains

The earth moved; GPS, earthquakes, and slow-slip

There are two sides to every fault

Striped oceans and drifting continents

Measures of temperature in the bowels of the earth

When North becomes South; the flip-side of earth’s magnetic field

Marie Tharp and the mid-Atlantic rift; a prelude to Plate Tectonics

Seamounts, hotspots, and atolls

Cook Islands seamounts and volcanoes

Aitutaki’s (Cook Islands) sedimentary carapace

Archives
Categories
dip and strike compass
Measuring dip and strike
sandstone classification header
Classification of sandstones
Calcite cemented subarkose, Proterozoic Altyn Fm. southern Alberta
Sandstones in thin section
poles to bedding great circles
Stereographic projection – poles to planes
froude-reynolds-antidunes-header-768x439-1
Fluid flow: Froude and Reynolds numbers
Stokes Law for particle settling in a schematic context of other fluid flow functions
Fluid flow: Stokes Law and particle settling
sedimentary-basins-distribution-1-768x711
Classification of sedimentary basins
Model are representational descriptions are written in different languages - diagrammatic, descriptive, mathematical, and conceptual. They commonly contain variables and dimensionless quantities that permit quantitative analysis of the physical systems the models represent.
Geological models
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