Chemical Evolution on Titan: Comparisons to the Prebiotic Earth

1997 ◽  
pp. 225-248 ◽  
Author(s):  
David W. Clarke ◽  
James P. Ferris
Keyword(s):  
Chemical Evolution ◽  
Prebiotic Earth

scholarly journals Polyesters as a Model System for Building Primitive Biologies from Non-Biological Prebiotic Chemistry

Life ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 6 ◽  
Author(s):  
Chandru ◽  
Mamajanov ◽  
Cleaves ◽  
Jia
Keyword(s):  
Chemical Evolution ◽  
Hot Springs ◽  
Prebiotic Chemistry ◽  
Chemical Reactivity ◽  
Structural Diversity ◽  
Building Blocks ◽  
Chemical Diversity ◽  
Prebiotic Chemical ◽  
Small Set ◽  
Prebiotic Earth

A variety of organic chemicals were likely available on prebiotic Earth. These derived from diverse processes including atmospheric and geochemical synthesis and extraterrestrial input, and were delivered to environments including oceans, lakes, and subaerial hot springs. Prebiotic chemistry generates both molecules used by modern organisms, such as proteinaceous amino acids, as well as many molecule types not used in biochemistry. As prebiotic chemical diversity was likely high, and the core of biochemistry uses a rather small set of common building blocks, the majority of prebiotically available organic compounds may not have been those used in modern biochemistry. Chemical evolution was unlikely to have been able to discriminate which molecules would eventually be used in biology, and instead, interactions among compounds were governed simply by abundance and chemical reactivity. Previous work has shown that likely prebiotically available α-hydroxy acids can combinatorially polymerize into polyesters that self-assemble to create new phases which are able to compartmentalize other molecule types. The unexpectedly rich complexity of hydroxy acid chemistry and the likely enormous structural diversity of prebiotic organic chemistry suggests chemical evolution could have been heavily influenced by molecules not used in contemporary biochemistry, and that there is a considerable amount of prebiotic chemistry which remains unexplored.

Chemical evolution of interstellar dust, comets and the origins of life

1989 ◽  
Vol 14 (2) ◽  
pp. 103-131 ◽  
Author(s):  
J. Mayo Greenberg ◽  
Nansheng Zhao ◽  
Joniek Hage
Keyword(s):  
Chemical Evolution ◽  
Interstellar Dust ◽  
Origins Of Life

THE ORIGIN AND CHEMICAL EVOLUTION OF PRECAMBRIAN BASEMENT UNITS IN NORTHERN UTAH AND SOUTHERN IDAHO

2020 ◽  
Author(s):  
Skadi Kobe ◽  
◽  
Austin Jensen ◽  
Alexander Berniche ◽  
Katherine E. Potter ◽  
...  
Keyword(s):  
Chemical Evolution ◽  
Precambrian Basement ◽  
Northern Utah

Impact of the Small-Scale Spatial Distribution of Dust Particles on the Chemical Evolution of the Diffuse Interstellar Medium

2020 ◽  
Vol 64 (8) ◽  
pp. 693-710
Author(s):  
V. A. Sokolova ◽  
A. I. Vasyunin ◽  
A. B. Ostrovskii ◽  
S. Yu. Parfenov
Keyword(s):  
Spatial Distribution ◽  
Interstellar Medium ◽  
Chemical Evolution ◽  
Dust Particles ◽  
Small Scale

Chemical Evolution of the Orion Association. IV. The Oxygen and Iron Abundances of F and G Stars

1998 ◽  
Vol 493 (1) ◽  
pp. 195-205 ◽  
Author(s):  
Katia Cunha ◽  
Verne V. Smith ◽  
David L. Lambert
Keyword(s):  
Chemical Evolution ◽  
Orion Association

scholarly journals Controls on chemical evolution and rare element enrichment in crystallising albite-spodumene pegmatite and wallrocks: Constraints from mineral chemistry

Lithos ◽  
2020 ◽  
Vol 352-353 ◽  
pp. 105289 ◽  
Author(s):  
Renata Barros ◽  
David Kaeter ◽  
Julian F. Menuge ◽  
Radek Škoda
Keyword(s):  
Chemical Evolution ◽  
Mineral Chemistry ◽  
Rare Element ◽  
Element Enrichment
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