A Grain of Sand Sand is soft, scratchy, in all the wrong places, and boring… or is it? Ea
A Grain of SandSand is soft, scratchy, in all the wrong places, and boring… or is it? Each minute sand grain has a remarkable history with roots in diverse geological processes, from explosive volcanic eruptions, to the formation and destruction of intricate sea shells. Each grain is somewhere on its journey from formation to destruction, and will eventually be re-cycled by the planet’s huge, slow chemical and physical cycles.These journeys are captured in the spectacular work of Dr Gary Greenberg, who has been photographing sand for decades. The sand grains in this picture are from Maui, and are mainly the remains of living creatures, some more intact than others. Just in these few grains there are fragments of corals, sea urchins, bivalves, gastropods, bryozoans and encrusting algaes, there are near-complete foraminifera and the skeleton of a juvenile sponge (the three-pronged structure), as well as a few grains of ‘terrigenous’ material - ground up rocks from the land.OBImage Source: http://sandgrains.com/ (with permission)More about Sand from The Earth Story:- 'Sand Star Beach’: http://goo.gl/4g4EIu- A 'Sand Tsunami’: http://goo.gl/eQ84G5- The mineralogical side of sand: http://goo.gl/Vjyfuc- Wind erosion of sand: http://goo.gl/4TiwGr- A pufferfish’s sand garden: http://goo.gl/0mRDDa -- source link
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