Initiation and early evolution of a forearc basin: Georgia Basin, Canada

2019 ◽  
Vol 32 (1) ◽  
pp. 163-185 ◽  
Author(s):  
Bryan A. P. Kent ◽  
Shahin E. Dashtgard ◽  
Chuqiao Huang ◽  
James A. MacEachern ◽  
H. Dan Gibson ◽  
...  
Keyword(s):  
Early Evolution ◽  
Forearc Basin ◽  
Georgia Basin

scholarly journals Does the Great Valley Group contain Jurassic strata? Reevaluation of the age and early evolution of a classic forearc basin

Geology ◽  
2006 ◽  
Vol 34 (1) ◽  
pp. 21 ◽  
Author(s):  
Kathleen D. Surpless ◽  
Stephan A. Graham ◽  
Jacob A. Covault ◽  
Joseph L. Wooden
Keyword(s):  
Early Evolution ◽  
Forearc Basin ◽  
Great Valley Group ◽  
Great Valley

INTERPRETATION OF GAS HYDRATE PROSPECT IN THE MIYAZAKI-OKI FOREARC BASIN, JAPAN

2017 ◽  
Author(s):  
Makoto Tanaka ◽  
◽  
Tetsuya Fujii ◽  
Than Tin Aung ◽  
Naoya Wada ◽  
...  
Keyword(s):  
Gas Hydrate ◽  
Forearc Basin

scholarly journals Cofactors are Remnants of Life’s Origin and Early Evolution

2021 ◽  
Vol 89 (3) ◽  
pp. 127-133 ◽  
Author(s):  
Aaron D. Goldman ◽  
Betul Kacar
Keyword(s):  
Genetic Information ◽  
Evolutionary Biology ◽  
Active Sites ◽  
Rna World ◽  
Genetic System ◽  
Early Evolution ◽  
Modern Biology ◽  
Iron Sulfur Cluster ◽  
Adenosyl Methionine ◽  
Precursor Rna

AbstractThe RNA World is one of the most widely accepted hypotheses explaining the origin of the genetic system used by all organisms today. It proposes that the tripartite system of DNA, RNA, and proteins was preceded by one consisting solely of RNA, which both stored genetic information and performed the molecular functions encoded by that genetic information. Current research into a potential RNA World revolves around the catalytic properties of RNA-based enzymes, or ribozymes. Well before the discovery of ribozymes, Harold White proposed that evidence for a precursor RNA world could be found within modern proteins in the form of coenzymes, the majority of which contain nucleobases or nucleoside moieties, such as Coenzyme A and S-adenosyl methionine, or are themselves nucleotides, such as ATP and NADH (a dinucleotide). These coenzymes, White suggested, had been the catalytic active sites of ancient ribozymes, which transitioned to their current forms after the surrounding ribozyme scaffolds had been replaced by protein apoenzymes during the evolution of translation. Since its proposal four decades ago, this groundbreaking hypothesis has garnered support from several different research disciplines and motivated similar hypotheses about other classes of cofactors, most notably iron-sulfur cluster cofactors as remnants of the geochemical setting of the origin of life. Evidence from prebiotic geochemistry, ribozyme biochemistry, and evolutionary biology, increasingly supports these hypotheses. Certain coenzymes and cofactors may bridge modern biology with the past and can thus provide insights into the elusive and poorly-recorded period of the origin and early evolution of life.

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