Volcanic rock

can use the principles of geology and the principles of stratigraphy to explain the geological reasoning behind each episode that lead to the formation of the rock units in the strata. Using these elements we can construct a comprehensive geological outline of the layers of Vicunia. By the reasoning of Steno’s…

Current event article number one; Incredible facts about liquid Igneous rock Cullen Croghan Ivy Tech Community College Gemma Tarlach author of the article “Twenty Things You Didn’t Know About Lava” that I found from the magazine Discover did a very nice job talking about lava and the variations of it. Although she’s not a full-blown geologist she did a nice job with information very close to that of what’s been inscribed into our text books and what’s been told to us in class. After reading…

much I wrote it up for California Explorer (May/June 2014). Since then I’ve wondered about the other ancient volcanic plugs that make up the nine sisters, a group that starts with Morro Rock and ends at Islay Hill in the southeast corner of San Luis Obispo. I decided to trek down to the area with the idea of exploring the other morros, or at least the ones open to exploration. Morro Rock is environmentally sensitive and closed to climbing. Chumash Peak has no access, and Cerro Romauldo is used…

that the formation was derived from a terrane consisting of igneous, high-grade metamorphic, and sedimentary rocks (Morey 1967). Morey’s study agress with what Ojakangas and Matsch put into the Minnesota’s geology book. Both of these studies state that the sandstone came from the weathering and erosion of the igneous and metamorphic rocks. These igneous, metamorphic and sedimenatry rocks all came from the volcanism that occurred earlier in Minnesota’s…

Mr. Campbell I wanted give you an apology because I was getting started writing my rough draft and I was reading it to myself, and I started to get thirsty, then got up to get a drink. I left the door cracked because it would only take me about 6 minutes. I grab my drink, and while I'm sipping on it, I heard my door open. Next thing you know I hear tearing and ruling; I sit my drink down and run to my room. Once I get there and look down at the floor, my paper is ripped to shreds by my dog. I…

stones, sliding rocks, moving stones, and moving rocks are a topographical marvel where rocks move and write long tracks along a smooth valley floor without human or creature intercession. Stones with unpleasant bottoms leave straight striated tracks while those with smooth bottoms have a tendency to meander. Stones once in a while turn over, presenting another edge to the ground and leaving an alternate track in the stone's wake. Trails contrast in both heading and length. Rocks that begin…

they are not yet rounded hills. These mountains occurred when the North American and Pacific plates collided, that spans approximately 680 kilometers wide. The Pacific plate wedge itself under the North American plate, causing folding, faulting and volcanic activity. The mountains here run north and south forcing transportation east to west, because there are only few gaps and…

known fossil diatoms are from Lower Cretaceous in age, although fossil record is limited. Diatoms might have a much longer history, but because of their mineral instability under lithostatic pressure, well-preserved diatoms become rarer with older rock strata (Harwood and Nikolaev, 1995). Globally Cenozoic marine successions are rich in diatoms, and its biostratigraphy is based on regional and global first and last occurrence of unique, short-lived diatom with widespread…

Johnson). He has to continually search all around Western North America to find fossils and then he has to dig the fossil’s up which can be scattered across land. It can be hard to find certain forms of sedimentary rock that have fossils in them, it can take a long time to get to the sedimentary rock (Hays). Another obstacle is that he has to base his research about past climate on just fossil leaves. It’s first hard to find fossil leaves but also it’s hard to determine if it’s an actual fossil…

given an observation journal to record primary data about the two types of rocks, at Coomera (Nucrush Quarry) and at Springwood Conservation Park. To maintain an equal representation, secondary data will be used to refer to the main points. On our field trip, we went to Nucrush Quarry at Coomera. Nucrush offer a range of products that are all made from a sedimentary rock by the name of, Greywacke. Figure 1: The Rock Cycle According to figure 1, greywacke is formed deep under the sea. The…