Sunday, August 25, 2019
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Iron-silica particles helped shield cyanobacteria like these, which played a key role in the oxygenation of Earth's atmosphere according to new research from UAlberta.
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Iron-silica particles unlock part of the mystery of Earth’s oxygenation

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Artistic depiction of early Earth blasted by solar system debris.
climate

Chemical footprint in present-day atmosphere mimics that observed in ancient rock

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biotite
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Platinum is key in ancient volcanic related climate change

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Continental plates around Greenland.
climate

Icy Greenland’s heated geologic past

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Herðubreið Volcano in Iceland
climate

Minerology on Mars points to a cold and icy ancient climate

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A conceptual rendering suggests how Earth's land elevations and oceans may have appeared during the assembly of Kenorland, left, and later, right, after the Great Oxygenation Event. A University of Oregon-led study has potentially narrowed the window on when significant amounts of land emerged from under the ocean's surface.
climate

Land rising above the sea 2.4 billion years ago changed planet...

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Localization and geometry of the "Unit 2" corresponding to the sediment body originated by the Zanclean mega flood.
climate

Scientists find new evidences of the megaflood that ended the Messinian...

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the central range of Taiwan
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Mountain erosion may add CO2 to the atmosphere

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The Pinnacles of Gunung Mulu in Borneo
climate

New source of global nitrogen discovered

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The San Francisco Bay shoreline, where yellow indicates areas where a projected rise in sea level (SLR) will result in flooding by 2100. Red shows where local land subsidence (LLS) will combine with SLR to increase the flood-prone areas.
climate

Sinking land will exacerbate flooding from sea level rise in Bay...

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Chinese loess plateau
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Desertification and monsoon climate change linked to shifts in ice volume...

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Sediment layers
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New Method Unearths Climate Data from Ancient Soils

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An example of coastal boulder deposits on Inishmaan, Aran Islands. The cliffs are about 20 m high, and the boulders are piled 32-42 m inland from the cliff edge.
climate

Storm waves can move boulders we thought only tsunamis had the...

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This moisture in the layer of weathered rock that is commonly located beneath soils is an important part of the water cycle on the local and global level. Tree roots tap into the rock moisture and release it back into the atmosphere as water vapor, and water flows through the fractures and becomes part of the seasonal groundwater storage (blue arrows).
climate

Hidden ‘rock moisture’ could be key to understanding forest response to...

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This is the sampling site Lomas Bayas in the core region of the Atacama.
climate

Life under extreme drought conditions

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Erosional Pleistocene shorelines in Surprise Valley, California, USA.
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Extinct lakes of the American desert west

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The oceanic slow carbon cycle.
climate

How seafloor weathering drives the slow carbon cycle

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climate

Global warming – we have lessons to learn from the Pliocene...

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Ocean.
climate

Primordial oceans had oxygen 250 million years before the atmosphere

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Several glaciers flow into the area of Young Sound where researchers have shown that heat from the Earth's interior warms up the bottom water of the fjord.
climate

Heat loss from the Earth triggers ice sheet slide towards the...

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