Stalagmites and Stalactites The stalactites and stalagmites are rock formations found that occur in limestone caves. The rain water seeping through the rock and water that evaporates inside the cave, make the roof of the cave wet, this moisture slowly precipitated again dragging some minerals. Stalactites are formed from rainwater. Rainwater is very acidic even without the pollution in the air. When it rains, tiny raindrops are formed.
Where do these rocks come from? Sedimentary rocks come from the very thing they are named after; sediment. These rocks originate from weatherization and a few other processes over a long period of time. For example, if a mineral is stripped from some rocks during weatherization and are carried to a body of water, the minerals will eventually settle at the bottom of the lake and through some other processes settle down and form rocks (Murck, Skinner, & Mackenzie, 2008). Dead plants and animals, along with minerals already at the locations help to create the sedimentary rocks and their unique characteristics.
How to predict an volcanic eruption Ground Deformation Ground deformation is the change in shape that happens before during or after a volcanic eruption. This happens because the sides of the volcano change shape because the magma in many ways to measure the change of shape of the volcano, like leveling, triangulation and more recently using continuous Global Positioning System (CGPS). It is also possible to use lakes as large tilt meters. Tilt meters measure the tiny degrees of tilt or slope on land. This is one of the oldest methods of knowing when ground deformation was caused because of rising lava.
Not only can sinking air not produce rain, but when it reaches the ground it absorbs water from the soil and vegetation, creating even more arid conditions. We find deserts where this air descends. In fact, at about 30° North, hold the Sahara, the
Examples of regional metamorphic rocks include schist and gneiss. Thermal metamorphic rocks, also known as contact metamorphic rocks, are formed by extreme heat along with quite a bit of pressure. The pressure pushes the molten rock against the Earth's surface, causing it to recrystallize. Examples of thermal metamorphic rocks are marble and sandstone
These types of rocks are known as abraded rocks. Bedrock in desert areas becomes steep-sided with fat-topped buttes. When the wind moves through the desert area and deposits sediments, sand is deposited into a hill or a ridge. This type of landform is known as a dune. Dunes are asymmetric with a slight windward slope.
It turns into a river because of all the water the mountains have and then creates a path. Rivers cause erosion. Runoff from rivers cause rocks to erode. Because of gravity, runoff, and the sediment it has, to move downhill. An example of this sheet erosion.
Much of Australia's landscape is naturally saline and salt stored in the soil is a natural feature. Vast amounts of salt, mostly located underground have built up over many thousands of years and are so deep within the soil that they don't affect plant growth. Depending on the location, this salt that lies deep in the soil has come from different sources. One cause of this salt is believed to be the ocean; the salt has been carried inland by winds which drop salt in the rain or dust. Another source is the release of salts as rocks weather.
Oil and methane "seep" out of those fissures, are diffused by sediment, and emerge over an area several hundred meters wide. Methane (CH4) is the main component of what we commonly refer to as natural gas. In addition to being an important energy source for humans, methane also forms the basis of a cold seep ecosystem. Cold seep biota below 200 m typically exhibit much greater systematic specialization and reliance on chemoautotrophy than those from shelf depths. Deep-sea seeps sediments are highly heterogeneous.
Volcanoes and earthquakes In the world, there are many natural disasters which occur without the human's contribution. Volcanoes and earthquakes are some disasters that have a huge impact on many things. These two types of natural events can compare or contrast to each other. These natural disasters have differences more than similarities. Volcanoes and earthquakes are different in three things: the geology, the process, and the effect.