Question

Travel to the following locations using Google Earth Pro, Google maps or any other mapping software of your choice. Describe the primary landform process in each area and speculate briefly how each area came to look the way it does today! (0.8 marks)

(a) 39º 16’ 53”S 175º 33’ 57”E

(b) 02º46’52”S 60º 40’ 09”W

(c) 37º59’36”N 73º23’01”E

(d) 30º24’08”N 58º16’41”W

Answer 1

a) Tongariro crater lake New Zealand.

Crater lakes are formed on the peak of a volcano. when large amount of lava ejected out from the magma chamber and emptied out resulting in collapse of overlying fractured rock forming a depression. When these depression get filled with water from snow or rainfall it forms a lake.

b) Braided river Rio Negro Brazil

Braided channels are formed by deposition of sediments in the channel which separates the water flow forming small and temporary island commonly called as braid bars. They are formed where channel has relatively steeper slope than straight and meandering channels.

c) River stream in Tajikistan

Water released from rainfall and melting glaciers on the peak flow through valley forming streams, these streams join together to form greater stream or river.

d) Abyssal plain in North Atlantic ocean.

Deep ocean floor is relatively plain area called as abyssal plain that are formed at mid oceanic ridges due to continuous volcanism by process of sea flood spreading.