Rock (geology) arkoses (12%). Sedimentary rocks often contain fossils. Sedimentary rocks form under the influence of gravity and typically are deposited in horizontal or near horizontal layers or strata and may be referred to as stratified rocks. A small fraction of sedimentary rocks deposited on steep slopes will show cross bedding where one layer stops abruptly along an interface where another layer eroded the first as it was laid atop the first. Metamorphic rocks are formed by subjecting any rock type—sedimentary rock, igneous rock or another older metamorphic rock—to different temperature and pressure conditions than those in which the original rock was
Heat of 'heat content'. It is sometimes also called the heat function. In terms of the natural variables of the state function , this process of change of state from state 1 to state 2 can be expressed as It is known that the temperature is identically stated by Consequently, In this case, the integral specifies a quantity of heat transferred at constant pressure. As a common noun, English "heat" or "warmth" (just as French "chaleur", German "Wärme", Latin "calor", Greek θάλπος, etc.) refers to (the human perception of) either thermal energy or temperature. Speculation on thermal energy or "heat" as