Year: 2022

BULK AQUEOUS CHEMISTRY. “Metasomatism is the drastic change in the bulk chemical composition of a rock, due to the introduction of chemicals from other surrounding rocks.” https://lnkd.in/eSpeQsqS View in LinkedIn

THE NARROW VIEW. “Perhaps I am right in saying that there is a general impression abroad that metasomatism is a sort of replacement of one mineral by another, with addition of material and mainly of importance in ore deposits.” (1925). https://lnkd.in/enQ7UEgW View in LinkedIn

METASOMATISM. “I would like you to look at it from a far broader viewpoint—as a universal process based on the fact that the minerals of all rocks are soluble in the fluids of nature, particularly water, but also in the mixed emanations from magmas, and on the fact that these fluids change the minerals to others, of different composition, stable under the particular conditions of pressure and temperature prevailing. Remove metasomatism and there would be very little left of metamorphism.” https://lnkd.in/enQ7UEgW View in LinkedIn

CONSTANT CHANGE. “Metasomatism: is a metamorphic process by which the chemical composition of a rock or rock portion is altered in a pervasive manner and which involves the introduction and/or removal of chemical components as a result of the interaction of the rock with aqueous fluids (solutions). During metasomatism the rock remains in a solid state.” https://lnkd.in/ecuZyBBT View in LinkedIn

VAST SCALES. “Mineral sheet aqueous recrystallization chemistry on geologic scales. Recrystallization and neomorphism are processes that transform minerals in situ into different forms of themselves, or a polymorph.” https://lnkd.in/e6CSiwCj View in LinkedIn

EXAMPLE. “Recrystallization is the change process of micritic dolomite (calcite) to crystalline dolomite (calcite). It is caused by thermodynamics and dynamics, leading to the crystal form change of dolomite (calcite) and coarser crystals.” https://lnkd.in/ebKRGBrE View in LinkedIn

AQUEOUS GEOLOGY. “Chemical equilibrium and mineral saturation. Low-temperature aqueous geochemistry has become a well-developed science over the past several decades.” https://lnkd.in/eTGK5eZN View in LinkedIn

SOLUBILITY CHEMISTRY. “Some minerals simply dissolve in water, dissociating into their component ions. Other minerals react chemically with water, often forming some soluble ions and some insoluble residues. For those that dissolve by ionic dissociation, the range in solubilities spans many orders of magnitude.” https://lnkd.in/eTGK5eZN View in LinkedIn

CHROMATOGRAPHY. “In terms of scale, at one extreme minute quantities of less than a nanogram are separated and identified during analysis, while at the other, hundreds of kilograms of material per hour are processed into refined products.” https://lnkd.in/eVWxgEc6 View in LinkedIn

Summer confetti disperses the rigid idea of deciduous plants dropping their leaves only in the autumn; the expensive process of discarding body parts is ongoing. View in LinkedIn