Converting Greenhouse Gases to Rocks

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One of the ways scientists are attempting to reduce greenhouse gases is to inject these gases into the ground. Specifically, they are testing injecting them, into basalt which is type of igneous rocks usually forming the first (rock) layer (sandwiched between the sedimentary & gabbro layers) in the oceanic crust basalt and in volcanic regions.

The above video features Iceland and its geothermal plants. Iceland is a heaven for geothermal energy as it lies along the Mid-Atlantic Ridge (MAR) (i.e. where Mid-Atlantic ocean floor is spreading apart in opposite directions forming a ridge). Most notably Iceland lies along the V-Shaped Reykjavik ridge (figure below; Google maps) which is part of the Norther MAR.

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Surprises at the Mariana backarc

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The Mariana backarc, the same location of the deepest point on Earth, is where the thermal vents occur due to the spreading of two plates. In other words, the spreading apart of the sea floor results in a trench like the Mariana trench. At such backarcs, and the similar but not the same Mid-Ocean Ridges, “black smokers” form.

The following video is a fly-thru movie at the Mariana backarc in search for HydroThermal vents (second video).

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How Earthquakes and Volcanoes Reveal the Beating Heart of the Planet

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How Earthquakes and Volcanoes Reveal the Beating Heart of the Planet, via Smithsonian Magazine – Journey to the Center of Earth

breathingearth

Structural Geology Collection @ Paris-Sud & Paris-Saclay

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Universite Paris-Sud & Universite Paris-Saclay launched a website for the structural geology collection at University of South Paris (Paris-Sud). They call it the “StructuroTheque“.

The website allows you to investigate the items in details through a zoom lens as well as providing some details about the structure’s details and location of origin. Items are categorized by

The website allows you to view the collection as  a flat gallery and on a map.

 

Lab simulation of Strike-slip fault deformation using glass beads

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via Strike-slip deformation with erosion and cross sections – The Field – AGU Blogosphere

Original post @ The Geo Models

A Seismological Journey Inside the Earth

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A Seismological Journey Inside the Earth – From Plate Tectonics to Deep Earth Dynamics

2016 IRIS/SSA Distinguished Lecturer
Caroline Beghein, U.C. Los Angeles

Deepest part of the Ocean

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The deepest part in Earth’s oceanic crust is the Mariana Trench which is a located in the western Pacific ocean east of the Mariana islands near the Philippines and Japan. The trench is the location where two tectonic plates meet (converge), the pacific and Philippines plates. The Challenger Deep is its deepest point to which four descents have been made to. Its reaches a reaches a depth of about 11 km.

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Location of Challenger Deep in the Mariana Trench in the western pacific ocean.

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