the pangea supercontinent theory is easily proven wrong by simple logic in gravity. dirt is heavier than water. if all the land mass is on one side with the water on the other. that would make the planet unbalanced. the water would be uphill.
gravity is a push not a pull(shadowing theory);
https://www.google.com/webhp?sourcei...not a pull
the landmass, water, atmosphere, everything. is being continuously accelerated from west to east. space is moving and it blows us along(that's an analogy it's way more complex than that) our solar system is like an over glorified electric motor.
also it travels faster at the equator than the polls. (usually) things get accelerated and decelerated over short distances.
as landmass is moving, what is ahead must move out the way. if it does not then the mass will be pushed to the polls and spun counter-clockwise "always no exceptions ever". if it can not, then it will lift and push into void(mountain building/volcanoes).
if there is a reduction in pressure you will get valleys, oceans, lakes, ponds, meadows eccetera.
also if you have areas that get spun up faster than the surrounding terrain like our northern valley here. notice the butte mountains are smack dab in the centre like a hub on a wheel.
you will often get a lot of pressure around such structures. think of a tire pealing out and the rooster tail behind it especially east. the central and southern valley is doing the same thing but in the shape of a chainsaw (elongated).
everything is in continuous motion. as the land moves so does the creeks, rivers, and glaciers. a river doesn't eat through the terrain. the terrain gets pushed apart.
everything is under pressure. if one thing tries to move it'll affect what's immediately around it.
think of a mountain as if it's sticking together. from the smallest grain of sand to the largest boulders. the position and movement of every part is dependent on every other part based on proximity.
if you are facing south and looking down hill. the ground in front of you at your feet will be moving faster to your left than the ground behind your feet. it will be hanging back.
if you are facing south and into the hill. the ground in front of your feet will be hanging back. while the ground behind you will be heading to your right.
whether or not the ground is traveling uphill or eroding down is dependent on the amount of pressure relative to velocity.
light materials will travel to areas that have high velocity and low pressure. heavy materials will travel to any area of low velocity regardless of pressure. the higher the pressure. the better gold is held in place and often the gold is bigger. low pressure gives you fine gold.
also the classification of materials is dependent on this as well. high pressure big things, low pressure small things. now you know what determines the size of gold.
so if everything rotates counter-clockwise. what happens when you put two gears together and try to rotate them in the same direction. they grind together.
now we're not dealing with gears. the terrain acts like clay or water on a planetary scale. materials will transfer back and forth "across" the waterway
think of washes and waterways as being the seams of the solid terrain structure where things are able to slide "more" freely, not entirely. they are low pressure at high velocity.
if you're standing in a creek. facing north, the hill you are looking at will be moving to your right. the hill behind you will be moving to your left. if some kinetic force is able to push the mountain in front or behind you across the creek, it'll scoop up the creek bed materials and create a low velocity area. now you know why bends and gravel bars hold gold. and why they form.