Igneous rock

to erupt and what effect do they have on the earth and the people? A volcano erupts when the Earth’s plate tectonics shift. Lahar is fast flowing volcanic mudflow that is made up of ash and water. When a volcano erupts, it produces lots of rock and ash. This rock and ash is full of lots of minerals.…

Believe it or not volcanos from the past are good for today. So back in the day when volcanos erupted they would deposit rock and minerals into the ground where farmers would have their crops. So today after so many years the soil where the farmers planted their crops is so rich from the deposit of rocks and minerals into the soil. For example when you have rich soil that means two thing that your crops are going to be good. Then the last thing that is that your pastures are going to be good…

and sunscreen, because the crust’s temperatures range from whatever the temperature is on the surface of the Earth to 870 degrees celsius! The crust is mostly made up of solid granite and basalt (volcanic lava rock), so be on the lookout for dark, black stone (basalt) or sparkly, shiny rocks of many different colors (granite). Because the crust is the top layer, you will not experience a lot of pressure while in it. We will not be staying in the crust overnight -- we will reach the next stop…

intruded country rock with different igneous compositions. These compositions ranged from alkaline to mafic to rhyolitic based on their interactions as they made their way to the surface with country rock. Mafic magma interacts well with host rock while rhyolitic magma does not due to its high viscosity.…

total of ten different landscape regions located within the Pacific Northwest. The rocks that are within each region provide the foundation for the landscape within the region. The study of the rock located in the region tells us about the geologic past and provides insight on the materials and processes from which the landscape was formed. I will briefly discuss each of the areas and provide insight on the types of rocks in which they are formed from. We will start with the Basin and Range…

black, pink, red, grey, and brown. It is a metaphoric rock created in low temperature hydrothermal veins. It is known was the stone of peace. In moments of foreign turmoil, it encourages peacefulness. Piemontite brings solutions to disputes and conflicts. Ones confidence and understanding of freedom improves with this stone. Greywacke is a type of sandstone that is hard, dull, and dark grey. It is made up of a mixture of quartz, feldspar, and rock particles. These grains are not equally…

with a definite chemical composition. Window glass is not considered a mineral, by definition, because it is not naturally occurring and it is non-crystalline. Emerald is a crystalline substance that is mined from naturally occurring igneous and metamorphic rock, generally used in jewelry because of its unique optical…

pond was observed to be igneous rock, with evidence of batholith, an igneous specific type of intrusion that spans for miles at a time. This is evident in figure 8. Various minerals and a grainy texture were also observed. Because of this, and identification of minerals such as quartz, as observed in figure 6, and orthoclase, in figure 9, this rock was concluded to be the igneous rock, granite. Granite forms when magma under the Earth slowly crystallizes. Igneous rock forms when there is an…

Block Mountain. Talus is an accumulation of broken rock fragments at the base of valleys or mountain cliffs. The accumulation forms scree slopes or talus piles, which make up a cone shape corresponds to the angle of repose. Landslide sediment is nonconsolidated sediment…

Sediment-hosted copper deposits are formed by fluid mixing in permeable sedimentary and (more rarely) volcanic rocks. Two fluids are thought to be involved: an oxidized brine carrying copper as a chloride complex, and a reduced fluid that commonly formed in the presence of anaerobic sulfatereducing bacteria. For a sediment-hosted copper deposit to form, four conditions are required: (1) an oxidized source rock, (2) a brine to mobilize copper, (3) a reduced fluid to precipitate copper, and (4)…