Please answer all questions. Visit this cave website for questions 13-16. http:/
ID: 119243 • Letter: P
Question
Please answer all questions.
Visit this cave website for questions 13-16. http://www.pbs.org/wgbh/nova/caves/form.html 12] Describe how wave action can produce caves. Where in the US can you find these types of features? 13] Describe how caves can form in volcanic/lava environments. Where in the US would you find these types of features? 14] Are caves that from by wave action and in volcanic environments true karst landforms? 15] What are the major cave systems in the Southwestern US was developed by dissolved HS [Hydrogen Sulfíde] in the groundwater? How is this different then the formation of normal" cavesExplanation / Answer
12. Sea cave, or littoral cave, is a type of cave formed primarily by the wave action of the sea. By the process of erosion.They formed by continuous action of waves by erosion.
Example of Sea caves - Apostle Island Sea Caves, Wisconsin, USA.
13. Lava cave - Lava caves formed as a result of surface solidification of a lava flow during the last stages of its activity.Molten rock that reaches the surface like lava can form sprawling cave networks while it flows down the path of least resistance. The material is very hot initially, but as the outer layer of lava starts to cool it solidifies into a shell of rock. This process insulates the lava within and starts at the base of the flow forming a through-like structure through which the hot lava at the center keeps on flowing. Over time, material clings to the edges of this through and solidifies, eventually closing into a pipe-like structure.
Example - Lava Beds National Monument, California, USA.
14. - Sea caves formed by wave action trough erosion processes of any rocks and lava caves formed in Volcanic rocks by hot lava activity.
But different is that Karst landforms formed by the dissolution of limestone. Rainwater picks up carbon dioxide from the air and as it percolates through the soil, which turns into a weak acid. This slowly dissolves out the limestone along the joints, bedding planes and fractures,form caves by dissolution.
15. The strong acid was produced as dissolved oxygen (O2) from the earth’s atmosphere reacted with aqueous hydrogen sulfide (H2S) from the adjacent basin. The hydrogen sulfide mixes with oxygen to form sulfuric acid. The corrosive acid eats away at the limestone rock, leaving behind gypsum.Bacteria also live within some of these pitch-black caves. these bacteria feed off the hydrogen sulfide, combining it with oxygen to form even more sulfuric acid. Other types of microbes eat minerals, like S and Mn And forming caves like karst caves.