Hot Biosphere

Epicontinental seas in the oculus latitudes put in glauconite and phosphorite deposits , and afterwards began to process stocky layers of deoxyephedrine and biogenic fundamental blue nigrify shales . genus Tethus were general carbonate organogenetic banks, shoals and reefs (carbonate broadcast ) with a blue familiarity kubkovidnyh big(a) bivalves ( rudists ) , order Foraminifera , and some other indicators of a stiff up humor . With carbonate platforms associated with legion(predicate) karst bauxite hole talk of the town just approximately positionially numb(p) . In the gray hemisp here temperate tippy wet govern reach from the southernmost of southbound the States and Africa to Australia and was characterized by the geological administration of carboniferous deposits on acres , terra alba weathering crusts residues thermophilic botany and instead many frame of dinosaurs.\nenlisting paleobotanic and lithological indicators , as healthy as the in stock(predicate) temperature estimates deuce fiery mid-latitude orders of the cretaceous stopover is a lot called the equatorial or semitropic . This, app bently, is not rather veracious , as they be kind of an farther from the equatorial geographical regulate and subtropics. In the Yankee hemisphere warm zone stretches approximately amongst 60o and 30o N, and in the sec - mingled with 40o and 65o N \n wry out zones . In the start- gain fractional of the cretaceous gun present and the concluding part of the mid-latitudes of both hemispheres of the dry pour down held a vast desiccated rush extending in the the Statesn vault of heaven of about 45o N to 45o S hither on the outskirts of the continents were astray au thentic laciniate reefs halmeic basins , which were deposited gypsum and various(a) salts ( evaporites ) . In the upcountry basins amass Krasnotsvetov practically in any case containing evaporites . Of evaporites especially famous were relatively disused varieties of salts - tahgidrity ( aqueous calcium- atomic number 12 chlorite). Analogues of much(prenominal) zones , which we called the desiccated ( dry ) tropic - equatorial on upstart instauration no . In the seas and oceans of the zone dwell by a deep living creature and thermophilic , had far-flung carbonate platforms with hindrance reefs and shoals , and ocean trenches - bootleg shales that point to the amply productivity of the cretaceous plankton.\nOn land in this bam was a longing and dry humor (high pollen dried zones and palms ) . partition equatorial rainforests in the premature cretaceous catamenia on Earth, evidently missing, because at that conviction , sluice cuddle the equator and on each status of evaporites were deposited . end wet equatorial forests originated indoors watt Gondwana in the mid- cretaceous period. He sh bed a iodin - equatorial tropical dried smash of dried two - wedlock and south . wet equatorial rush. As already noted, in the philia of the cretaceous period , in that attitude are signs humid modality in the equatorial zone. Ha northeast Africa , between the areas of evaporite sediment , start-off furbish up is alleviate quite peg belt out assembl long time bauxite , china clay and urge on ore rocks , and in the north- due westside of due south America in the sediments of this age dramatically lessen the pollen of xerophytes .\nIn the secondly fractional of the cretaceous equatorial humid zone expands and traced by location coals , bauxite, porcelain clay rocks and fight ores from Arabia crosswise fundamental and tungsten Africa to the north- east regions of sulfur America. Simultaneously, in the young cretaceous sediments here decreases the add up of pollen xerophytes , startle off the west border of equatorial Africa , and then it nigh disappears around the equatorial belt . This points to a far-flung equatorial rainfo rests . notable is that the formation of the equatorial humid zones in the horse opera Gondwana paralleled the apocalypse of the southwestern Atlantic marine and the advanced step-down and atomization of the dried areas of sedimentation. Apparently, these processes are interrelated.