Cascadia subduction zone

VMS deposits occur in a diversity of shapes ranging from flat lens shaped to large sheet-like sulphide mineral rich bodies (Allen, et al., 2002). The preferred environment for these deposits to form in is submarine near a seafloor opening i.e. black smokers, where hydrothermal fluids escape and precipitate on the ocean bottom (Evans & Moon, 2006). The mineralogy of Kidd Creek VMS deposits often consists out of more than 60 different ore minerals and ore-related gangue minerals, of which 90% or…

side of the plate, along Central America, there have been way bigger eruptions than the west side. The west side of the plate has also had a lot more, deeper earthquakes than the other sides of the plate. The Cocos and Caribbean plates could have subduction occurring, considering that the west side of the plate has a lot more height directly next to a deep trench, a lot of earthquake and volcanic activity, and the sea floor is a little older in that…

Japan is associated with so many natural disasters. This is because the island, Japan is located where the North American, Pacific, Eurasian, and Philippine plate meet, also known as plate boundaries. Japan is also located where the Pacific plate and the Philippine plate are subducting. This results in the stress building up where the two plates are subducting. How do plates move? Well, plates move when uneven heating in the mantle creates currents. This current is a convection current, and…

Those who live in western Canada definitely know about the imminent danger of large earthquakes near you. There have been quakes there in the past, and there will be some there again, no doubt about it. It is much less commonly known that eastern Canada has many earthquakes as well. Though not as common as in the west, there are still many quakes in this region. How are there even earthquakes in the middle of a plate? Most people know that earthquakes occur around plate boundaries, the places…

he movement of the tectonic plates causing a shaking of the Earth’s surface, is an earthquake. Seismographs are instruments that can measure the size of an earthquake, from a tremor to a major event, as they are happening almost unceasingly. Some earthquakes can cause major events like broken dams, landslides, volcanic eruptions, tsunamis and destruction of cities. (Encyclopedia Britannica, 2015) The densest areas of the map – appendix 2 – is around Indonesia and New Zealand. This is because…

The year is 1964 and what seemed to be like any other normal day in southern Alaska turned out to be anything but. March 24th marked a turning point that would affect many lives in Alaska as well as the lives of those along the coasts of Hawaii and Oregon. It impacted society physically and economically far beyond what anyone could have ever imagined. This day also shed light and created new practices as well as new methods of anticipating future earthquakes. The Earthquake of 1964…

1) Describe the two technological advances that have made it possible to better understand the dynamics of the Earth 's mantle. Two technological advances that have made it possible for scientists to better understand the dynamics of the Earth’s mantle are seismic snapshots and computer modeling. Seismic snapshots enable scientists to determine the temperature and density of the mantle. When an earthquake occurs vibrations are put into motion which create waves that can be detected by…

Jonathan Apgar Intro to Systems John Small 21 November 2017 Cypress Viaduct Failure Inquiry At 5:08 pm the Point Loma earthquake begins. Within seconds the cypress viaduct begins to vibrate. This is due to the bay clay on which it is built which intensifies the vibrations. The upper deck is insufficiently secured to the lower deck and the areas near the shear keys begin to degrade. As concrete begins to fall away the resonant frequencies cause these weak points (columns with shear keys) to fail…

For the game I was unsure what I wanted to do. I had to do an Earth Science game and I choose to talk about earthquakes. I named my game Tecnopoly. I prepared by finding a game that would be interesting to the visitors and educational while having fun playing it. I was not sure how the game was going to be constructed; I had too many things going on and causing myself to be confused. I choose a board game that was dubbed from the famous board game Monopoly. However, I only took the concept and…

I believe that there are no plate tectonics on Venus. I believe this because of the reasearch that i did on this topic. Venus shows no evidence of plate tectonics on it's planet. " There are no long, linear volcano chains or any clear subduction zones. The transform plate boundary, causes the plates to slide past one another, which may cause earthquakes or fault lines, which is exactly what is happening. The plates are sliding past one another and earthquakes ar occuring which may lead one to…