How do the lithospheric plates move at a convergent margin? Give an example of a present day convergent margin. What features wo
uld you expect to find at an ocean-continent convergent plate boundary? How do the lithospheric plates move at a transform margin? Give an example of a present day transform margin
The lithospheric plates constantly float over the layer of the asthenosphere due to the generation of convection current in the mantle. These currents are formed because of the heat that is radiated from the core of the earth.
In a convergent plate boundary, the two plates collides with each other resulting in the formation of a subduction zone that is marked by a deep-sea trench. The magma then rises up towards the surface in the over-riding plate resulting in the formation of volcanoes or a chain of volcanic islands. For example, the San Andes Mountain.
The features that are commonly associated with an oceanic-continental marginal are the subduction zone, trenches and volcanoes or chain of volcanic islands
When two plates slide past one another, then it forms a transform boundary and there occurs no construction or destruction of plates. Shallow focus earthquakes are generated. For example, the San Andreas Fault.
As the sedimentary and igneous and metamorphic rocks are distinct from each other as they appear on the landscape but show similar internal properties and thus allowing us to recognize them from a distance.
<u>Sedimentary Rocks range from shake sandstone to limestone and conglomerate. While Metamorphic i.e foliated being Slate, Phyllite, Schist, and Gneiss, etc. While the Nonfoliated Metamorphic rocks are Quartzite and Marble</u>.
Rocks revolve in there set rock cycle forming distinctive and newer rocks over the geologic time scale of earth. As each rock type is altered with force to produce the fro example a basalt rock when subducted and could be merged with the mantel to form in the water cycle.
As these are called secondary changes in the evolutionary phases of rocks which then can<u> transition into metamorphic rocks through the process of mountain building in the orographic belt</u>s.
As a result, other rocks are recrystallized to form a sedimentary rock in its next phase which is unstable and subject to weathering. Transitions deeply impact the chemical and physical properties of rocks.
Sri Lanka’s separatist movement involves __Hindus__, who are __Dravidian__ speakers, in the north and __Buddhists__, who are __Indo-Aryan__ speakers, in the south.
