– A short description … Biodiversity is created and stored in the Tropics. For a long time, it is recognized that the tropics have a higher …
Carboniferous strata in Pennsylvania.
Carboniferous rocks in Europe and eastern North America largely consist of a repeated sequence of limestone, sandstone, slate and coal deposits, known as “ciclotemas” in the U.S. and “coal measures” in Britain. In North America, the Lower Carboniferous is largely marine limestone, which justifies the division of the Carboniferous in the two periods that are used there, Pensilvaniense and Misisipiense. The Carboniferous coal deposits were the main source of energy during the industrial revolution and are still of great economic importance.
The great Carboniferous coal deposits owe their existence to two factors. The first is the type of bark from trees of this period (and in particular the evolution of the bark fiber lignin). The second factor is the low sea level that occurred during the Carboniferous, in comparison with Devon. This led to the formation of extensive lowland swamps and forests in North America and Europe. It is hypothesized that during this period had not yet evolved animals and bacteria able to digest the new lignin.
Lepidodendron sp. fosil practices in a laboratory of the Faculty of the University of La Coruna.
These first plants to an extensive use of lignin. Were of wood with bark from 8 to 1, and even as high as 20 to 1. This contrasts with the modern values of less than 1 to 4. This crust, which should have been used as a carrier, as well as the protection, probably had a 38 to 58 of lignin. Lignin is insoluble, too large to pass through cell walls, too heterogeneous for specific enzymes, and toxic, so few organisms besides basidiomycete fungi can degrade. Neither can be oxidized in an atmosphere of less than 5 oxygen. Can persist in soil for thousands of years, and inhibits the breakdown of other substances. Perhaps the reason for these high percentages of lignin was the protection of plants against herbivorous insects, but not remotely as effective as modern insectivorous. In any case, it could easily have formed thick coal deposits in well-drained soils, as well as in swamps.
Extensive burial of biologically produced carbon accumulation led to an excess of oxygen in the atmosphere. An estimated peak oxygen content as high as 35 compared to 21 today. This level of oxygen, probably, increase the activity of forest fires, and also results in giant insects and amphibians, creatures whose size is limited by its respiratory system, which has a limited capacity for diffusion of oxygen. … watch the weather and climate of the tropics throughout the world. … that water vapor is important for weather and climate in the tropics …
Supplement – apeada transport timber in the tropics. I – Transport to short distances … The total time of the farm is 4 years and …
The time has a somatic, ie, substantial or space. … with the relativistic view of time compared to the tropics and the poles that …