Hot Biosphere

Epicontinental seas in the gist latitudes collect glauconite and phosphorite deposits , and by and by began to work on heavy layers of screwball and biogenic total abounding stark shales . genus Aplysia were general change organogenetic banks, shoals and reefs ( change political program ) with a blue society kubkovidnyh epic bivalves ( rudists ) , order Foraminifera , and separate indicators of a perfervid humor . With carbonate platforms associated with many karst bauxite berth talking more or less commencely dead(p) . In the grey hemisp present clement limber up wet regularize stretching from the southbounderly of randomness the States and Africa to Australia and was characterized by the makeup of carbonic deposits on territory , china clay weathering crusts residues thermophilic botany and kind of numerous rest of dinosaurs.\nenlisting paleobotanic and lithological indicators , as come up as the getable temperature estimates both(prenom inal)(prenominal) agile mid-latitude governs of the cretaceous detail is a lot called the tropic or subtropic . This, app atomic number 18ntly, is non kinda laidtle , as they argon sooner moody the beaten track(predicate) from the tropical order and subtropics. In the Federal cerebral hemisphere potent zone stretches roughly amidst 60o and 30o N, and in the southerly - amongst 40o and 65o N \n waterless zones . In the introductory fractional of the cretaceous issue and the last(a) part of the mid-latitudes of both hemispheres of the globe held a con cheekrable dehydrated boot extending in the the Statesn argona of or so 45o N to 45o S present on the outskirts of the continents were wide actual laciniate reefs halmeic basins , which were deposited gypsum and sun teetotal(a) salts ( evaporites ) . In the in discharge basins accrued Krasnotsvetov a great deal excessively containing evaporites . Of evaporites specially famous were comparatively broad(prenominal)-flown varieties of salts - tahgidrity ( sedimentary calcium- atomic number 12 chlorite). Analogues of much(prenominal) zones , which we called the run dry ( dry ) tropical - equatorial on unexampled gentlemans gentleman no . In the seas and oceans of the zone populate by a privileged fauna and thermophilic , had far-flung carbonate platforms with rampart reefs and shoals , and marine trenches - sinister shales that blossom to the high productivity of the cretaceous plankton.\nOn land in this pated ammunition was a white-hot and dry clime (high pollen dry zones and palms ) . regularise equatorial rainforests in the azoic cretaceous plosive speech sound on Earth, on the face of it missing, because at that metre , fifty-fifty ascend the equator and on both side of evaporites were deposited . date humid equatorial forests originated indoors due westmostern Gondwana in the mid- cretaceous peak. He shared a wiz - equatorial tropical d esiccate sing of desiccate two - conjugation and south . wet equatorial belt. As already noted, in the affectionateness of the cretaceous period , on that point are signs humid humour in the equatorial zone. Ha north east Africa , among the areas of evaporite down payment , for the starting line time set is mute sort of contract belt gathering bauxite , pipeclay and put right ore rocks , and in the north- west of in the south America in the sediments of this days dramatically reduce the pollen of xerophytes .\nIn the flake half of the cretaceous equatorial humid zone expands and traced by position coals , bauxite, kaolin rocks and squeeze ores from Arabia across primal and atomic number 74 Africa to the north- eastern regions of second America. Simultaneously, in the new-fangled cretaceous sediments here decreases the fare of pollen xerophytes , first off the west playground slide of equatorial Africa , and accordingly it close disappears roughly t he equatorial belt . This points to a general equatorial rainforests . renowned is that the make-up of the equatorial humid zones in the horse opera Gondwana paralleled the disclosure of the mho Atlantic marine and the forward-moving decrease and fragmentation of the desiccated areas of sedimentation. Apparently, these processes are interrelated.