不幸的人
发表于 2025-3-27 00:49:49
Fine Structure of the Stratified Microbial Community at Laguna Figueroa, Baja California, Mexico). The evaporite flat is composed of evaporitic minerals (anhydrite, aragonite, gypsum and halite) and sand clastics (quartz). Beneath a thin surface layer, laminated sediments with a stratified microbial community are found. These laminated sediments are a cohesive fabric of minerals, microbes and
fodlder
发表于 2025-3-27 04:39:35
The Influence of Biomineralisation on the Composition of Seawatercant extent in biologically produced particles. A large proportion of this particulate material results from biomineralisation reactions in the surface layers of the ocean. Five predominant mineral phases have been identified (calcite, aragonite, celestite, barite and opaline silica). These minerals
Arbitrary
发表于 2025-3-27 06:18:19
The Global Carbonate-Silicate Sedimentary System — Some Feedback Relationses of equations and diagrams. A summary schematic model is constructed that permits material transfer between various sedimentary reservoirs without changing the CO. content of the atmosphere or of the ocean. Then the actual present-day reservoirs and fluxes of various carbonates and silicates are p
panorama
发表于 2025-3-27 13:10:35
Calcification and Atmospheric CO2c system, related to CO. in the primitive atmosphere before the origin of life, (b) Atmospheric CO. problem, that is now being faced, in connection with climatic change. This subject concerns calcification in biological system, related to CO. in the present atmosphere.
Alveoli
发表于 2025-3-27 15:06:37
The Modern Distribution and Geological History of Calcium Carbonate Boring Microorganisms or into solution had evolved by late Precambrian time, prior to the emergence of skeleton bearing metazoans. Throughout the Phanerozoic both inorganically and biogenically formed carbonate substrates were bored. Today, endoliths have representative species in all five kingdoms. They occur in fresh
GLIB
发表于 2025-3-27 18:16:59
The Possible Role of Mitochondria and Phosphocitrate in Biological Calcificationlux, whose rates are under regulation. Very large amounts of Ca., together with phosphate, can be taken up by mitochondria both . and . in intact cells, yielding electron-dense granules that are amorphous by x-ray analysis, prevented from crystallizing by inhibitor(s). Chemical studies suggest the i
jaundiced
发表于 2025-3-27 23:55:36
http://reply.papertrans.cn/19/1883/188251/188251_37.png
GLARE
发表于 2025-3-28 04:48:36
http://reply.papertrans.cn/19/1883/188251/188251_38.png
河潭
发表于 2025-3-28 09:45:39
http://reply.papertrans.cn/19/1883/188251/188251_39.png
Misgiving
发表于 2025-3-28 11:59:20
Problems in the Understanding of Biomineralscroscopy to define solids. Associated polymers are examined by nuclear magnetic resonance spectroscopy. Simulation of biomineralisation is described based upon reactions in vesicular space..The object of this paper will be to describe our approaches to the problems of biomineralisation. There are th