Among the three major types of rock, fossils are most commonly found in sedimentary rock. Unlike most igneous and metamorphic rocks, sedimentary rocks form at temperatures and pressures that do not destroy fossil remnants.ost sedimentary rocks contain either quartz (especially siliciclastic rocks) or calcite (especially carbonate rocks). In contrast to igneous and metamorphic rocks, a sedimentary rock usually contains very few different major minerals.
How many tons for a 1500 sq ft home. I have been getting bids for an ac unit in my home and I have been getting a range of 3 tons to 3.5 tons. I live in Dallas Texas and my home is pretty well shaded during the days and the majority of my windows face north or south.
In the United States, a short ton is usually known simply as a ton, without distinguishing it from the tonne (1,000 kilograms or 2,204.62262 pounds), known there as the metric ton, or the long ton (2,240 pounds or 1,016.0469088 kilograms), known there as the Imperial ton. Long ton, 2,240 lb (1,016.0469088 kg). 2  Ton. 3  Tonne, also known as a metric ton (t), equal to 1,000 kg (2,204.6226218 lb) or 1 megagram. 4  Tonnage, volume measurement used in maritime shipping, originally based on 100 cubic feet (2.8316846592 m 3).