Architecture of an Active Mud-Rich Turbidite System: The Zaire Fan by Droz et.al.

12. In the Figure 5 profile, the coastline is within a few kilometers of the western end of the vertical cross section. From the coastline, water depth increases very gradually to about 40 m at 140 km from shore (western end of the profile). This segment of the vertical cross-section resembles the continental [(rise)(slope)(shelf)]

In site one there was a high proportion of very unspherical rocks. According to this the hypothesis is right, in site two there is a lot more smother rocks medium sized and in site 3 there are very small pebbles which are very smooth and spherical. The pebbles get smoother and rounder while it goes downstream. Due to us only taking about 10 rocks our result may have been not right as there were some pebbles which were largely over sized. Most of the other load is dissolved by solution such as limestone and chalk

The fossil deposits at the Chicxulub site suggest that the mineral layer in the crater was deposited after the impact, but before the extinction of the dinosaurs and other species. Keller proposes two possible explanations for this. The first explanation is that the sediments were deposited as the backwash of a giant tsunami that occurred after the impact (Keller 2004).

Archaeology is a continuously evolving field where there is a constant stream of new branches and excavation methods. Due to the influx of new technologies and innovations in recent decades, archaeologists have been able to excavate previously inaccessible areas. For example, new diving equipment and tools such as proton magnetometers, side-scan sonar, sub-bottom profiler, and miniature submarines have allowed archaeologists to dive into the deep depths of the ocean. As a result, the branch of underwater archaeology was created to search for shipwrecks and other artifacts on the ocean floor. Underwater archaeology’s role has increased in recent years as it allows archaeologists to more accurately interpret the past by supplementing

Our world is full of mystery. There are countless unknown traces from the past all over the world and they are waiting to be solved and answered. Archaeology studies the ancient human past through the excavation of sites and the analysis of artifacts and other physical remains. In fact, archaeology is the tool that decipher the clues that are found through its continuous development of excavation and methods. The advance of new technologies in recent decades enable archaeologists to excavate previously unapproachable areas, such as underwater. The underwater archaeology is developed in order to discover the lost shipwrecks and various

Complete this week’s lab by filling in your responses to the questions from Geoscience Laboratory. Select answers are provided for you in red font to assist you with your lab work. Although you are only required to respond to the questions in this worksheet, you are encouraged to answer others from the text on your own.

the lateral blast, and the large mudflow of this eruption have led to the reassessment

Questions and charts are from Geoscience Laboratory, 5th ed. (p. 133-150), by T. Freeman, 2009, New York, NY: John Wiley & Sons. Reprinted with permission.

What is interesting about this paper is the author’s purpose. It seems as though he is attempting to raise awareness and support geophysics. However, all the points he brings up to discuss he quickly refutes with dangers. This confuses the reader as the article is more intimidating rather than informational. The overwhelming sense of danger associated with each

The Axial Seamount is an underwater volcano. In the Northeast Pacific, it is actually the most active underwater volcano. The volcano is on top of a divergent plate boundary. This volcano is on the Juan De Fuca ridge and the Pacific Plate. This volcano is one of the best-studied volcanoes along the global mid-ocean ridge (Interactive Oceans).

The Raton-Clayton volcanic field is about 20 000 km2 in size, and has been active periodically for the past 9 million years. The area is filled with peaks, cones, and lava-capped mesas. The mesas developed as lava flowed into valleys and depressions, cooled off and formed a resistant top layer over sedimentary rocks. As the surrounding rock eroded, the lava protected the underlying stratigraphy from erosion. This caused todays topography, where that which was once the lowest point, is now the highest. There is some disagreement over why the volcanic field is here, one possible cause is that it is near the end of the Jemez Lineament, which has numerous volcanic centers along its reach, possibly

The Tuscarora formation is in the Silurian age, located in Pennsylvania, mostly composed of quartzite, and is secondarily composed of sandstone. Its thickness is 150-200 feet and is in the lower part of the Silurian age. The Tuscarora formation is in the Clinton group. One member would be Castanea located at the top of the Tuscarora Formation. The depositional environment is, as we know it, a continental shelf of some sort of marine zone because of sediment structures like fossils and cross-bedding. The Tuscarora formation is mainly non-porous and neither

The highest elevation of the site is 200m above sea level and Pit 2 is the closest to this high point(Figure 1). As elevation decreases, particles are transported from higher elevation to the lower elevation due to gravitation and water flow process. In addition, the appearance of the Barber Creek indicates the process of fluvial(Figure 1). During raining seasons, the creek will be over flooded, alluvium process will occur, where light particles are suspended in the water and heavy particles are deposited along the creek bed.

They have sinuous, curving channels and their heights are higher compared to their widths (Thompson & Thompson, 2003). Irregularities toward the local direction of slant cause paths sinuosity. Canyons located in the Mammoth Cave run up to 80 to 100 feet high and 10-30 feet wide but many of them are not that high and much narrower. Vertical shafts are created where water can run down vertically alongside fractures (Call, 2010) as illustrated in figure 6.

Characterizing the morphology of the alluvial fan with the 1-meter DEM will help to further delineate the evolution of the fan. Two profiles of the alluvial fan were analyzed by creating traces along the alluvial fan seen in figure 3b and figure 3c. The elevation of figure 3b and figure 3c was traced with ArcGIS and calculated using MatLab. The cross-sections of the alluvial fan show the curvature of the fan morphology. These traces align in the west - east direction shown in figure 3b that corresponds to the profile of figure 11. Figure 3c alignment is in the north - south direction and corresponds to profile figure 12. Where the traces end, it marks the change of the slope profile of the fan. It is difficult to see but the cross-section from a to g starts out convex to concave retrospectivity. According to Stock J.D. (2008) how sediments are transported; longer profiles are commonly concave up and the shorter fans are generally convex. In contrast, the cross-sections of figure 9 show how the sediments are dispersed. There is higher density of material in profile A and has a slight convex morphology. As you move towards profile G a slight concave morphology can be