Peat depositional environments, the sites where and conditions under which peat
accumulates, significantly influence a resultant coal's physical properties, chemical …

This article addresses the fundamental difference between coal rank and coal type. While
theoretically settled long ago as being different aspects of coal systems science, the two …

Interactions between fungi and plants, including parasitism, mutualism, and saprotrophy,
have been invoked as key to their respective macroevolutionary success. Here we evaluate …

Detailed stratigraphic, sedimentologic, paleocurrent, and subsidence analyses were
conducted on Mesozoic nonmarine sedimentary sections of the south Junggar, north Tarim …

Coal will be a major energy source in the United States and in many other countries well into
the 21st century. Although coal is composed predominantly of organic matter, inorganic …

The genesis of the microscopic constituents of coal (macerals) and of maceral associations
(microlithotypes) representing various coal facies is discussed in the light of recent …

Nonrenewable energy resources, comprising fossil fuels and uranium, are not ran domly
distributed within the Earth's crust. They formed in response to a complex array of geologic …

Microbial methane accumulations have been discovered in multiple coal-bearing basins
over the past two decades. Such discoveries were originally based on unique biogenic …

Climate is a primary control on sediment flux from continental sources into sedimentary
systems. In warm climates, siliciclastic input is greatest under highly seasonal rainfall …

Global-scale compilations of palaeoclimate indicators include records of the temporal and
spatial occurrence of coal, laterite, bauxite, Vertisols, calcrete, eolianite, and evaporite at the …