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“WEATHERING rocks, and their redistribution by plants and animals. It is probable that the pH of rainwater, as well as the amount of rain and its contained cations and anions, has an important influence on the weathering of minerals and rocks in any locality.” https://lnkd.in/ete8CApd View in LinkedIn

VAST PH RANGES. “The pH of rainwater in any area varies considerably and seems to form a seasonal and regional pattern. The recorded pH values range from 3.0 to 9.8.” https://lnkd.in/ete8CApd View in LinkedIn

IONIC BREW. “The stability of soil clay minerals is influenced by the constant accession of cations from rainwater. Conversely, the clay minerals modify the amounts and kinds of cations that are leached out by drainage waters. The stability of micaceous minerals in soils may be partly due to accessions of K+1 ions from rainwater.” https://lnkd.in/ete8CApd View in LinkedIn

FRAGMENT FROM NATURE continues from last weekend and concludes this weekend on the topic of the constant flux of rocks. Geology is about constant transformations and highly dynamic processes occurring at large time and space scales with an enormous variety of components, resulting in a staggering diversity of rocks. https://lnkd.in/ete8CApd View in LinkedIn

Sardines on a fishing hook, a background by my great photographer. Poor critters are low on the food chain." "" " @marryme.films " "" "#sardines #humor #tin #marine #sealife View in LinkedIn

Backstreet in old town Girona. View in LinkedIn

NEMATODES, or roundworms, are among the most abundant animals on the planet. But when researchers looked at a variety of nematodes, they found the very same types of chemicals being combined and used for communication, says Paul Sternberg, professor of biology. “It really does look like we’ve stumbled upon the letters or words of a universal nematode language, the syntax of which we don’t yet fully understand.” https://lnkd.in/eUkRKpG5. View in LinkedIn

A wonderful series of unrealated afterthoughts written in a wall in Girona. View in LinkedIn

ORGANICS. “Nitrogenous compounds are always present in the atmosphere and are carried down in rainwater.” https://lnkd.in/ete8CApd View in LinkedIn

METATHESIS. “When chemical reactions occur between species in an aqueous solution, the reactions are usually double displacement (also called metathesis or double replacement) reactions. In this type of reaction, the cation from one reactant takes the place for the cation in the other reactant, typically forming an ionic bond. Another way to think of it is that the reactant ions "switch partners".” https://lnkd.in/ei8-eG5H View in LinkedIn