Would you like to start a free subscription?
Remember me | Forgot password
For full content view: Log in Now!
Earth history is recorded at many scales. Trees accumulate decades, centuries, even millennia of layered rings reflecting climate variations of time past. Sediments are laid down over eras and epochs, sometimes carried to the deepest parts of the ocean and immediately buried. Paleontologists have organized plant and animal fossils to date many formations.
Macrostratigraphy is an emerging technique used by geologists to tie together data from disparate regions. It’s in the limelight now, with a recent letter published in Nature, and an upcoming paper in the GSA Bulletin. Both use data synthesized within the Macrostrat project at the University of Wisconsin-Madison.
This area of the site is restricted.
In order to gain access, please either Log
In, or subscribe to World Oil.
Two options are available to you for creating an account.
1. Get a Free Trial Subscription to World Oil Magazine and gain immediate access to select content on World Oil Online.
Start a Free Trial Subscription and gain immediate access to the complete current issue of World Oil Magazine. Plus, you’ll receive 3 upcoming issues of World Oil Magazine in print or digital format.* You also receive access to the Energy Events Calendar, Industry Statistics and WO Wire’s news and industry coverage.
2. Purchase a subscription to World Oil magazine and gain immediate
and complete access to World Oil Online. As a Total Access subscriber
you will have access to all areas of the site available to registered users and
free subscribers as well as having access to such premium content areas as:
Physical copies of this content may be available for purchase. Visit the Reprints & Back Issues section.
If you are already a paid subscriber and do not have access, please email CustomerService@worldoil.com.
World Oil's specialized upstream Engineering Data Tables featuring the Drill Bit Classifier, Tubing Tables and more. Get Total Access today.
Kuala Lumpur - March 25-28
The Woodlands, TX - April 1-3
Houston, TX - April 6-9
All material subject to strictly enforced copyright laws.
© 2014 World Oil. © 2014 Gulf Publishing Company.