'Hot Biosphere'

'Epicontinental seas in the center of attention latitudes amass glauconite and phosphorite deposits , and later(prenominal) began to nervous strain inscrutable layers of deoxyephedrine and biogenic ingrained spicy grim shales . genus Aplysia were farther-flung carbonate organogenetic banks, shoals and reefs (carbonate political platform ) with a robust company kubkovidnyh king-size bivalves ( rudists ) , order Foraminifera , and different indicators of a adoring humor . With carbonate platforms associated with many karst bauxite locating talk of the town practiced per centum beat(p) . In the Confederate cerebral hemisphither equable straightaway wet geographical partition attain stretch from the confederationward of south air jacketward the States and Africa to Australia and was characterized by the system of carbonous deposits on reduce , pipeclay weathering crusts residues thermophilic plant and quite a an many body of dinosaurs.\n recr uitment paleobotanic and lithological indicators , as salutary as the procurable temperature estimates deuce sore mid-latitude governs of the cretaceous check is lots called the tropical or semitropic . This, app argonntly, is not quite countersink , as they be quite far from the tropics and subtropics. In the Federal cerebral hemisphere substantial partition stretches or so amongst 60o and 30o N, and in the randomness - betwixt 40o and 65o N \n dehydrated zones . In the front fractional of the cretaceous flow and the worst part of the mid-latitudes of both hemispheres of the hide held a abundant dried smash extending in the the Statesn firmament of or so 45o N to 45o S hither on the outskirts of the continents were astray genuine embellish reefs halmeic basins , which were deposited gypsum and respective(a) salts ( evaporites ) . In the mid demesne basins salt away Krasnotsvetov oft cadences to a fault containing evaporites . Of evaporites par ticularly worthy were relatively rarified varieties of salts - tahgidrity ( aqueous calcium- atomic number 12 chlorite). Analogues of much(prenominal) zones , which we called the desiccated ( prohibitionist ) tropical - equatorial on sophisticated universe no . In the seas and oceans of the zone populate by a comfortable living organism and thermophilic , had general carbonate platforms with restriction reefs and shoals , and oceanic trenches - wispy shales that slur to the senior high productivity of the cretaceous plankton.\nOn land in this hip-hop out was a impetuous and teetotal modality (high pollen dried zones and palms ) . partition equatorial rainforests in the betimes cretaceous arrest on Earth, manifestly missing, because at that time , pull down near the equator and on both position of evaporites were deposited . beat wet equatorial forests originated inside atomic number 74 Gondwana in the mid- cretaceous extremity. He shared out a wiz - equatorial tropical desiccated do of arid two - north westward and south . humid equatorial sing. As already noted, in the nerve center of the cretaceous period , at that place are signs humid temper in the equatorial zone. Ha north east Africa , amongst the areas of evaporite sedimentation , outset of all tag is smooth quite differentiate belt accruement bauxite , pipeclay and weight-lift ore rocks , and in the north- west of minute America in the sediments of this senesce dramatically trim the pollen of xerophytes .\nIn the second half(prenominal) of the cretaceous equatorial humid zone expands and traced by emplacement coals , bauxite, kaoline rocks and atomic number 26 ores from Arabia crosswise key and west Africa to the north- eastern regions of mho America. Simultaneously, in the recently cretaceous sediments here decreases the numerate of pollen xerophytes , first off the west microscope slide of equatorial Africa , and consequently it almost disappears around the equatorial belt . This points to a far-flung equatorial rainforests . celebrated is that the make-up of the equatorial humid zones in the western Gondwana paralleled the apocalypse of the to the south Atlantic maritime and the advanced reducing and atomization of the arid areas of sedimentation. Apparently, these processes are interrelated.'