on April 2, 2022
How does paleomagnetism prove continental drift?
Regional SpecificsPaleomagnetists led the revival of the continental drift hypothesis and its transformation into plate tectonics. Apparent polar wander paths provided the first clear geophysical evidence for continental drift, while marine magnetic anomalies did the same for seafloor spreading. What is paleomagnetism and how does it provide evidence for plate tectonics? Paleomagnetism also provides evidence to
on April 2, 2022
How are Anthodites formed?
Regional SpecificsTheir mode of formation is not well understood, but they presumably form in air-filled chambers by the slow precipitation of calcium carbonate from thin films of water that are held to their surface by capillary attraction. Where are Anthodites found? Anthodites are found in practically every Guadalupe cave, but form particularly exquisite arrays in the
on April 2, 2022
What kind of volcano is Mount Pinatubo?
Regional Specificsstratovolcanostratovolcano in the Philippines. Why is Mount Pinatubo a stratovolcano? Pinatubo, a large volcano on the Philippine isle of Luzon, is a stratovolcano, or composite volcano. Stratovolcano is the name given to volcanoes whose repeated eruptions have left layers of volcanic materials built-up on top of each other, forming a mountain. What type of volcano
on April 2, 2022
How does a convection cycle work?
Regional SpecificsConvection currents form because a heated fluid expands, becoming less dense. The less-dense heated fluid rises away from the heat source. As it rises, it pulls cooler fluid down to replace it. This fluid in turn is heated, rises and pulls down more cool fluid. How does convection work simple? Natural convection occurs when fluids
on April 2, 2022
Is Limestone a masonry?
Regional SpecificsWhy locally quarried limestone is ideal as masonry stone. Lincolnshire limestone is a great choice for masonry stone. It brings warmth, beauty and intrigue to buildings. What type of rock is limestone? sedimentary rock Limestone is a sedimentary rock composed principally of calcium carbonate (calcite) or the double carbonate of calcium and magnesium (dolomite). It
on April 2, 2022
What is the difference between cementation and compaction?
Regional SpecificsCompaction is the squeezing of sediments by the weight of the rocks and sediments above them. Cementation is when cement from fluids bind sediments together. What is the difference between compaction and cementation of sedimentary rock? Compaction is when sediment is pushed together by the weight of water and other sediment pushing down on it.