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.
Next, divide 30,000 square feet by 120 square feet per ton, which gives you 250 tons. Therefore, for this project you will need about 250 tons (at a 2â depth) of 5/8â Screened gravel. Example #2: You want to cover an area that is 1000 feet wide by 250 feet long with 2â-4â Apache Brown Rip Rap.First, multiply 1000 x 250 to give you 250,000 square feet.Divide 250,000 square feet by 70 square feet per ton, which gives you 3571.4 tons as the approximate quantity of 2â-4â rip rap needed for your project.xample #2: You want to cover an area that is 1000 feet wide by 250 feet long with 2â-4â Apache Brown Rip Rap. First, multiply 1000 x 250 to give you 250,000 square feet.