The two were formed by the same process.MHz I am not trying to be critical but I tend to find some of your assumptions flawed.
Trying to analyze plate interference and plate stress loading( and thus faulting and folding) simply cannot be done from looking at a few large scale pictures.
If you try to analyze or even understand a very, very small section of regional plate interaction you will need to be capable of understanding and practising structural geology concepts.
And to practice structural geology you need a basic understanding of tectonics, historical geology and the like.
And to really sink your teeth into whats going on under the ground you need to be capable of understanding geophysics and seismic interpretation.
And then you need access to good data.
http://www.uwsp.edu/geo/faculty/ritter/images/lithosphere/tectonics/fault_line_small.jpg
http://earthguide.ucsd.edu/images/mar/diag/map1a.jpg
If you like hi-res pics then this is a good place to find about 20 or so.
NOAA/NESDIS/NGDC/MGGD-Marine Geology and Geophysics Data Home
Those large scale pictures should enhance the current view of how the surface of the earth works. In the case of the age of the sea-floor the commonly held belief is that the American Cordillera was uplifted via the subduction/over-riding of the Pacific Plate. The rate the Atlantic Rift is pushing the Americas is slower than the floor of the Pacific Plate is moving. The volcanic hot-spots (like the Hawaiian chain) can determine how fast that movement is. Since the rate given below is faster than the Atlantic is spreading the Pacific must be spreading also. The start of that spreading millions of years ago was also the creation of the America Cordillera.
"The Hawaiian Islands are the exposed summits of the southernmost seafloor mountains, or seamounts, in the Hawaiian-Emperor seamount chain. This 3,105 mi (5,750 km) line of 107 volcanoes has formed over the last 70 million years as the Pacific Lithospheric Plate has moved to the northwest over a stationary magmatic hot spot in the mantle."
http://www.enotes.com/earth-science/hawaiian-island-formation