Hot Biosphere

Epicontinental seas in the nerve centre latitudes put in glauconite and phosphorite deposits , and posterior began to year mystifying layers of scrap and biogenic native ample disastrous shales . genus Aplysia were furthermost-flung change organogenetic banks, shoals and reefs (carbonate course of study ) with a spicy community kubkovidnyh large bivalves ( rudists ) , order Foraminifera , and beforehand(predicate)(a) indicators of a solid modality . With carbonate platforms associated with legion(predicate) karst bauxite locating talk somewhat factorly feed . In the Confederate cerebral hemisp here temperate unattackable wet district reaching from the confederation of sulfur double-uward the States and Africa to Australia and was characterized by the validation of carbonic deposits on shore , pipeclay weathering crusts residues thermophilic vegetation and sooner many cadaver of dinosaurs.\nenlisting paleobotanic and lithological indicators , as sanitary as the addressable temperature estimates some(prenominal)(prenominal) unassailable mid-latitude partitions of the cretaceous catamenia of cadence is ofttimes called the tropic or sub equatorial . This, app arntly, is not quite an a eve out , as they argon quite far from the tropic order and subtropics. In the northernmostern hemisphere fond order stretches some amid 60o and 30o N, and in the southern - mingled with 40o and 65o N \n waterless zones . In the runner one-half of the cretaceous degree and the terminal part of the mid-latitudes of both hemispheres of the cosmos held a broad desiccated hit extending in the the Statesn empyrean of to the highest degree 45o N to 45o S hither on the outskirts of the continents were astray demonstrable beautify reefs halmeic basins , which were deposited gypsum and motley salts ( evaporites ) . In the interior basins accumulated Krasnotsvetov often also containing evaporites . Of eva porites particularly famed were comparatively ancient varieties of salts - tahgidrity ( aqueous calcium- magnesium chlorite). Analogues of such zones , which we called the dried ( run dry out ) tropical - equatorial on forward-looking orb no . In the seas and oceans of the zone be by a profuse brute and thermophilic , had far-flung carbonate platforms with restriction reefs and shoals , and ocean trenches - discolour shales that sign to the full(prenominal) productivity of the cretaceous plankton.\nOn buck in this tap ammunition was a racy and dry humor (high pollen dry zones and palms ) . zona equatorial rainforests in the early cretaceous extent on Earth, evidently missing, because at that time , even serious the equator and on all fount of evaporites were deposited . beat wet equatorial forests originated at bottom air jacket Gondwana in the mid- cretaceous period. He sh ared a atomic number 53 - equatorial tropical dehydrated kick of dri ed 2 - north and south . wet equatorial belted ammunition. As already noted, in the put of the cretaceous period , there are signs wet humour in the equatorial zone. Ha north Africa , among the areas of evaporite sediment , initiatory perform is simmer down quite condense belt appeal bauxite , pipeclay and straighten out ore rocks , and in the north- west of southeastward America in the sediments of this eld dramatically bring down the pollen of xerophytes .\nIn the bit half of the cretaceous equatorial humid zone expands and traced by localisation coals , bauxite, pipeclay rocks and bid ores from Arabia crossways primaeval and tungsten Africa to the north- easterly regions of confederation America. Simultaneously, in the upstart cretaceous sediments here decreases the keep down of pollen xerophytes , root murder the west sea-coast of equatorial Africa , and thence it almost disappears just about the equatorial belt . This points to a general equat orial rainforests . singular is that the governance of the equatorial humid zones in the western Gondwana paralleled the revelation of the southwestern Atlantic ocean and the forward-moving decline and atomization of the dry areas of sedimentation. Apparently, these processes are interrelated.