Neptunism
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Neptunism was a geological theory popular in the late 18th century, founded by Abraham Gottlob Werner. This theory proposed that all rocks and landforms on Earth originated from the deposition of minerals from a universal, primeval ocean. Neptunists believed that as this ocean receded, it left behind distinct layers of stratified rocks.123
A key aspect of Neptunism was its opposition to the Plutonist (or Vulcanist) school, which argued that rocks like granite were formed by igneous processes. Neptunists, however, largely dismissed volcanism, suggesting that volcanoes were caused by the combustion of underground coal beds and that rocks like basalt were precipitates from the ancient ocean, not igneous formations. The theory faced significant challenges as geologists observed evidence of igneous activity and the limitations of Werner's universal rock classifications.123
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- Nicolas Desmarest
ā¦origin of basalt disproved the Neptunist theory that all rocks were formed by sedimentation from primeval oceans.
Read Moreā¦origin of basalt disproved the Neptunist theory that all rocks were formed by sedimentation from primeval oceans.
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Abraham Gottlob Wernerā¦German geologist who founded the Neptunist school, which proclaimed the aqueous origin of all rocks, in opposition to the Plutonists, or Vulcanists, who argued that granite and many other rocks were of igneous origin. Werner rejected uniformitarianism (belief that geological evolution has been a uniform and continuous process).
Read Moreā¦German geologist who founded the Neptunist school, which proclaimed the aqueous origin of all rocks, in opposition to the Plutonists, or Vulcanists, who argued that granite and many other rocks were of igneous origin. Werner rejected uniformitarianism (belief that geological evolution has been a uniform and continuous process).
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