Category: Earth
-
Saprolite
Saprolite is a chemically weathered rock. Saprolites form in the lower zones of soil profiles and represent deep weathering of the bedrock surface. In most outcrops, its color comes from ferric compounds. Deeply weathered profiles are widespread on the continental landmasses between latitudes 35°N and 35°S. Conditions for the formation of deeply weathered regolith include a topographically moderate relief flat enough to prevent erosion and to allow leaching of the products of chemical weathering. A second…
-
The Garden of Earthly Delights, Hieronymus Bosch
The Garden of Earthly Delights is the modern title[a] given to a triptych oil painting on oak panel painted by the Early Netherlandish master Hieronymus Bosch, between 1490 and 1510, when Bosch was between 40 and 60 years old. It has been housed in the Museo del Prado in Madrid, Spain since 1939. Bosch painted three large triptychs (the others are The Last Judgment of c. 1482 and The Haywain Triptych of c. 1516) that can be read…
-
Venus flytrap
The Venus flytrap (Dionaea muscipula) is a carnivorous plant native to subtropical wetlands on the East Coast of the United States in North Carolina and South Carolina. It catches its prey—chiefly insects and arachnids—with a trapping structure formed by the terminal portion of each of the plant’s leaves, which is triggered by tiny hairs (called “trigger hairs” or “sensitive hairs”) on their inner surfaces. When an insect or spider crawling along…
-
1911 Encyclopædia Britannica/Limonite
LIMONITE, or Brown Iron Ore, a natural ferric hydrate named from the Gr. λειμών (meadow), in allusion to its occurrence as “bog-ore” in meadows and marshes. It is never crystallized, but may have a fibrous or microcrystalline structure, and commonly occurs in concretionary forms or in compact and earthy masses; sometimes mammillated (covered with rounded mounds or lump, nipples or small protuberances),…
