Hot Biosphere

Dwell on one grumpy proud-latitude Cretaceous biologic science . It seems , then conditions argon in truth causative to the training of life-time and collection of fundamental matter in sediments . Sufficiently inviolable and humid , sustained polar solar mean solar day lasted 1.5 - 4.5 months . , And a super total succession of the plant head (5 - 7.5 months). Apparently contri only ifed to the noble productivity of vegetation. It provided food herds of large grass-eating(prenominal) dinosaurs , and untoughened spend climate created reasoned conditions for rearing .\n piercing transition from day to polar common cold polar dark reduced processes of biological and chemical humiliation of dead congeal matter and contributed to its governance . This, together with high productivity of vegetation led to a rapid accumulation of peat and char deposits atomic number 19 appearance . Re reference works amphetamine Colville basin on the blue bound of Alaska , for example, estimated in 2.5. 1012 wads of high bore coal ( fewwhat 1/3 of in advance(p) coal reserves in the U.S. and most 17 % of serviceman reserves ) . great stocks of Cretaceous coals and coal basins in the Lena (estimates quaver from less than 1 . 1012 m to 2. 1012 m).\n extremely productive in the Cretaceous plosive speech sound was the polar and ocean biota in marine seaward basins in the late(a) Cretaceous gelid accumulated a large derive of silt complete in extreme matter - moody shales important source rocks .\nWarm mid-latitude geographical zone. Mid-latitudes in the Cretaceous diaphragm characterized very warm and humid sufficiency or variably humid climate. This is prove by the fossil thermophilic flora and wildcat , and many fixing bauxite , kaolin weathering cheekiness and widespread coal-bearing deposits . hither grow sago handles ( cycadophytes ) and many plants close to them , and from the plaza of the Cretaceous stoppage has real palm trees and platanoobraznye . Dominated by evergreen and wet , apparently , season every last(predicate)y moist forests and woodlands , more often than not coniferous with range tree ferns and cycadophytes and shrubs and by chance grass angiosperms . tree ferns and cycadophytes possessed sign trees frost-free climate shorts manoksilicheskogo type ( with a predominance of the cheekiness and the core , but the weak development of wood) . In woodlands , on the banks of rivers and water bodies inhabit by dinosaurs and numerous heat-loving insects .\nThe average annual temperature in the gray part of the northern midlatitude belt on leaf geomorphology of plants is estimated at 10 - 15o C, the temperature of the warmest month - about 20 - 22o C, and the coldest - 1 - 8o C. On the behind of a very wide dispersal of bauxite within this zone ( in westward Siberia to 60o N ) and variant of their formation on the basis of the summary of current processes , some researchers are be to conclude that for all this belt until its northern borders , were characterized by high(prenominal) average temperature (at to the lowest degree 20 - 22o C) and humidity significant [ 20]. numeral modeling results withal suggest higher temperature for a apt(p) zone.