Urban growth boundary

Plate tectonics is a theory about how the plates are constantly moving on top of a layer of magma that is constantly taking in old crust to recycle it this constant movement causes earthquakes, tsunamis and other geological events. The movement of the Pacific and North American plates cause the old sea floor to be replaced by the now wider North American plate. Also with the movement the continental plate was stretched as the Pacific plate pulled the continental plate to the northwest which…

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…

the north side remaining more shallow and the south side having a wider range, but again with a lot fewer earthquakes. The middle of the plate, in the sea, there are almost no earthquakes at all. It isn’t unusual to have earthquakes along plate boundaries, as the plates aren’t the smoothest things in the world. The plates could catch or get stuck on each other until the pressure building up becomes too much and one buckles, falling or is pushed up suddenly against the other, creating an…

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 these currents create different types of plate boundaries. Divergent boundaries split apart from each other and form rift valleys. Transform boundaries slide, and convergent boundaries…

used by extended families (Genemo, 2012). Over the years, urban sprawl has directly contributed to the degradation and decline of natural environment resources. It also reduces farm land and productivity in city leading to social loss and open spaces (Haregewin, 2005). In addition, urban sprawl leads to regional imbalance, such as pulling jobs and people further away from poor communities, increasing in equality. Recently, the problem of urban sprawl was restricted to the developed world but;…

New crust is generated as plates pull away from each other and can either cause sea floor spreading or new land to be created. An example of a continental rift valley is the Eastern African Rift Valley which is being formed as the Eastern African plate is moving away from the main Africa plate in a north-easterly direction. Plates move apart due to convection currents in the lithosphere. As the crusts move away from each other the crust thins, tension in the lithosphere causes the plate to…

It is defined as a movement in the oceans that has a direction and is continuous. These abiotic features of the environment are created by the average or mean flow of the seawater, winds, Coriolis Effect, salinity and temperature difference, cabbeling and breaking waves. Coriolis Effect is the result of the rotating Earth. The rotating Earth changes the straight line path of the current and winds as they travel. Thus, the currents due to this in the Northern part move to the right side whereas…

attempt to achieve their life long goal of climbing the tallest mountain on the face of the Earth. Despite the extremely beautiful views that this mountain range provides, it poses a tremendous threat to those who live near this convergent plate boundary. In Susan Hough’s article titled Kashmir Valley Megaearthquakes, she discusses previous earthquakes that have occurred in the Kashmir Valley, and predicts an upcoming mega quake that will someday occur in this region. By using past records of an…

CHAPTER ONE 1. INTRODUCTION 1.1. BACKGROUND AND JUSTIFICATION Pan African Orogen (PAO) was formerly introduced by Kennedy (1964) to designate the peak of a wide spread orogenic thermo-tectonic episode characterized by intense period of reactivation and crustal formation. The term Pan African Orogen was used to describe the structural differentiation of Africa into cratons and mobile belts during the Neoproterozoic to earliest Paleozoic time (Kennedy, 1964). However, Kröner (1984) reformulate…

the stationary hot spots has created a large series of volcanos across the island. A previous interpretation showed a sharp bend in the chain about 2200 miles northwest to the island. 2. Hawaiian Island chain is located on a plate boundary? Yes it is located in the boundary of pacific plate. 3. Which of the island is youngest? Hawaii is the youngest of island. 4. Which of the sea mount is the oldest? Loihi is the oldest located sea mount on the Emperor Seamount chain. 5. How did the island and…