Ordering geological events?

Can I get some tips as to how these were ordered?


I know a comes first; c comes after e, and j comes after g.





a. deposition of precambrian sedimentary and volcanic rocks


b. downcutting by moder ncolorado river; deposition of river sediment


c. intrusion of granite batholiths


d. normal faulting of cretaceous limestone and all underlying units


e. regional metamorphism


f. subsidence below sea level, deposition of early paleozoic sedimentary rocks


g. subsidence below sea level, deposition of late paleozoic sedimentary rocks


h. subsidence below sea level, deposition of widespread thin plate of cretaceous limestone


i. uplift and erosion of precambrian and early paleozoic sedimentary rocks


j. uplift and erosion of precambrian, and early and late paleozoic rocks


k. uplift and erosion of of precabrian, paleozoic, and mesozoic rocks; establishment of modern river systems


l. uplift of ouachita mountains accompanied by normal faulting of precambrian and paleozoic rocks in the llano uplift


m. very long perioid of uplift and erosion of precambrian rocks|||You would need to study a geology map of the area in question before bing able to make the determination of relative ages. I'd guess its the Grand Canyon area.





EDIT: I don't happen to have a geology map of the Grand Canyon area handy and you don't specify the age of all the events but try this:





a. deposition of precambrian sedimentary and volcanic rocks





m. very long perioid of uplift and erosion of precambrian rocks





f. subsidence below sea level, deposition of early paleozoic sedimentary rocks





i. uplift and erosion of precambrian and early paleozoic sedimentary rocks





g. subsidence below sea level, deposition of late paleozoic sedimentary rocks





l. uplift of ouachita mountains accompanied by normal faulting of precambrian and paleozoic rocks in the llano uplift





c. intrusion of granite batholiths





j. uplift and erosion of precambrian, and early and late paleozoic rocks





e. regional metamorphism





h. subsidence below sea level, deposition of widespread thin plate of cretaceous limestone





k. uplift and erosion of of precabrian, paleozoic, and mesozoic rocks; establishment of modern river systems





d. normal faulting of cretaceous limestone and all underlying units





b. downcutting by modern colorado river; deposition of river sediment





You should really get out a geology map and study the history of the area yourself, as your teacher intended. Learning is not a spectator sport.|||Agree with Georock 1, this sounds like the Grand Canyon. Here are geologic history sites with information that will give you the history:


http://jan.ucc.nau.edu/~rcb7/panel_histo鈥?/a>


http://www.nps.gov/archive/grca/pphtml/s鈥?/a>


|||All your long question proves is that you are a conceited smarty pants. Thanks for the two points