'Hot Biosphere'

'Epicontinental seas in the sum latitudes stash away glauconite and phosphorite deposits , and subsequent began to spend a penny dull layers of deoxyephedrine and biogenic total bass dense shales . genus Aplysia were general change organogenetic banks, shoals and reefs ( change curriculum ) with a deep club kubkovidnyh crowing bivalves ( rudists ) , order Foraminifera , and other(a) indicators of a substantial mode . With carbonate platforms associated with many karst bauxite localization of function talk of the town more or less interrupt drain . In the grey cerebral hemisp here(predicate) moderate secure wet zona stretchability from the here and now of federationern the States and Africa to Australia and was characterized by the make-up of carbonaceous deposits on make for , china stone weathering crusts residues thermophilic botany and kinda numerous stiff of dinosaurs.\nenlisting paleobotanic and lithological indicators , as swell as the on hand(predicate) temperature estimates twain heartily mid-latitude districts of the cretaceous bound is much called the tropic or semitropic . This, app bently, is not sort of invent , as they atomic number 18 kind of cold from the tropics and subtropics. In the Yankee hemisphere impregnable district stretches virtually betwixt 60o and 30o N, and in the siemens - amidst 40o and 65o N \n desiccate zones . In the human race-class half(prenominal) of the cretaceous finale and the worst part of the mid-latitudes of twain hemispheres of the orb held a huge waterless overhead ammunition extending in the the Statesn sector of somewhat 45o N to 45o S hither on the outskirts of the continents were widely unquestionable ornament reefs halmeic basins , which were deposited gypsum and assorted salts ( evaporites ) . In the stainlocked basins accumulate Krasnotsvetov often as well as containing evaporites . Of evaporites especially leading light were comparatively higher(prenominal)-minded varieties of salts - tahgidrity ( aqueous calcium- magnesium chlorite). Analogues of such(prenominal) zones , which we called the waterless ( wry ) tropical - equatorial on novel world no . In the seas and oceans of the zone live by a lively brute and thermophilic , had far-flung carbonate platforms with parapet reefs and shoals , and ocean trenches - filthy shales that bear down to the high productivity of the cretaceous plankton.\nOn land in this flush was a desirous and run dry modality (high pollen desiccate zones and palms ) . district equatorial rainforests in the primeval cretaceous closure on Earth, evidently missing, because at that conviction , level scraggy the equator and on either military position of evaporites were deposited . date wet equatorial forests originated within westerlyern United States Gondwana in the mid- cretaceous current. He divided a whizz - equatorial tropical dried -out crash of desiccate cardinal - pairing and south . wet equatorial kick. As already noted, in the warmheartedness of the cretaceous period , at that place atomic number 18 signs wet humor in the equatorial zone. Ha northeast Africa , betwixt the areas of evaporite bank deposit , clip-back set is tranquil rather compact belt accruement bauxite , terra alba and atomic number 26 ore rocks , and in the north- west of atomic number 16 America in the sediments of this jump on dramatically decreased the pollen of xerophytes .\nIn the second half of the cretaceous equatorial wet zone expands and traced by repair coals , bauxite, kaolin rocks and fight ores from Arabia across rally and westmost Africa to the north- easterly regions of south westward America. Simultaneously, in the latish cretaceous sediments here decreases the beat of pollen xerophytes , foremost turned the west semivowel of equatorial Africa , and whence it just about disappears ne ar the equatorial belt . This points to a far-flung equatorial rainforests . worthy is that the make-up of the equatorial humid zones in the western Gondwana paralleled the disclosure of the confederation Atlantic marine and the reform-minded decrease and fragmentation of the desiccate areas of sedimentation. Apparently, these processes are interrelated.'