Register | Sign In


Understanding through Discussion


EvC Forum active members: 65 (9164 total)
5 online now:
Newest Member: ChatGPT
Post Volume: Total: 916,426 Year: 3,683/9,624 Month: 554/974 Week: 167/276 Day: 7/34 Hour: 1/2


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Rifting
Verheul
Inactive Member


Message 1 of 2 (90185)
03-04-2004 1:56 AM


I went across the Internet tonight and found an interesting website called : Cornell's Geoscience Information System pages. It allows us to produce geophysical cross sections (up to c. 40 km depth) in any given area, which I did for this forum's topic area. I would be glad to forward the result but errrrr : is there an attachment option in this forum ? Alternatively I could recommend you to enjoy your own creativity and have a "go" as well :
(1) open the "Digital Earth Project" section under "Research" ;
(2) go to page 3 of 5 and open the "Advanced Java applet" ;
(3) click "Start application" ;
(4) click "Set Map Extent" and click "Middle East" ;
(5) click "Submit Request"
(5) click "Profile Maker"
(6) click "Crustal Section"
(7) activy "Topography" and "Eurasian Basement" and "Eurasian Moho"
(8) click "Section Points"
(9) move to the map and click somewhere in the Mediterranean, then click to the east, somewhere Jordan and be sure to cross the dead Sea region when you do so ;
(10) click "Draw section"
(11) wait a minute, have a coffee ;
(12) you will see two visuals : a map showing the section line that you chose and a geophysical cross section which you should see like a "cake slice" ---> for those who are not familiar : in a way you made a cut in the earth's crust along the section line and are now capable to view and interpret its layering (from top to bottom) :
upper line : topography
blue filling : sea below sea level
yellow filling : upper crustal sediment layers (like sandstones and limestones)
green filling : lower crustal basement layer (solid continental rock like granite)
purple filling : plastic layer (upper mantle)
(13) the shape of the green filling (thickening and/or narrowing along the section line) may be one of the keys to interpret the situations and processes in the Israel-Jordan region ... one does not get to see superficial tectonic details like faults (also vital keys) here but one does get into the mechanics of the plate(s) by which the faults were likely triggered ...
... well : a lot of directions aren't they ... I just hope that I wrote this down in a nice way for both the hobbyist and the analysts out here !

Replies to this message:
 Message 2 by Percy, posted 03-04-2004 8:43 AM Verheul has not replied

Percy
Member
Posts: 22480
From: New Hampshire
Joined: 12-23-2000
Member Rating: 4.8


Message 2 of 2 (90238)
03-04-2004 8:43 AM
Reply to: Message 1 by Verheul
03-04-2004 1:56 AM


If you have an HTML page or an image file that you'd like made available for the forum, you can email it to Admin. I'll place it in the website's miscellaneous area and reply with a URL.
--Percy

This message is a reply to:
 Message 1 by Verheul, posted 03-04-2004 1:56 AM Verheul has not replied

Newer Topic | Older Topic
Jump to:


Copyright 2001-2023 by EvC Forum, All Rights Reserved

™ Version 4.2
Innovative software from Qwixotic © 2024