A new article summarized in physorg.com discusses how the first rocks are formed from the dust of nebulae. Here is an excerpt.
.... The study adds weight to the idea that the first solid material in the Solar System was fragile and extremely porous – much like candy floss – and that it was compacted during periods of extreme turbulence into harder rock, forming the building blocks that paved the way for planets like Earth.
...[The physicists theorize] the early carbonaceous chondrite rocks were shaped by the turbulent nebula through which they travelled billions of years ago, ...research suggests that the turbulence caused these early particles to compact and harden over time to form the first tiny rocks."
.[Their ideas coincide with the picture sketched wherein]..originally ... microscopic dust particles collided with one another and stuck together, coalescing around larger grain particles called chondrules, which were around a millimetre in size.
Their conclusions and the amazing techniques allowing their insights can be read in Nature Geoscience, Sunday 27 March 2011, in the article entitled "Earliest rock fabric formed in the Solar System preserved in chondrule rim". Now if we only knew what 'candy floss' is.
.... The study adds weight to the idea that the first solid material in the Solar System was fragile and extremely porous – much like candy floss – and that it was compacted during periods of extreme turbulence into harder rock, forming the building blocks that paved the way for planets like Earth.
...[The physicists theorize] the early carbonaceous chondrite rocks were shaped by the turbulent nebula through which they travelled billions of years ago, ...research suggests that the turbulence caused these early particles to compact and harden over time to form the first tiny rocks."
.[Their ideas coincide with the picture sketched wherein]..originally ... microscopic dust particles collided with one another and stuck together, coalescing around larger grain particles called chondrules, which were around a millimetre in size.
Their conclusions and the amazing techniques allowing their insights can be read in Nature Geoscience, Sunday 27 March 2011, in the article entitled "Earliest rock fabric formed in the Solar System preserved in chondrule rim". Now if we only knew what 'candy floss' is.
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