Featured Research

from universities, journals, and other organizations

A Rising Force: New Study On Ancient Mantle Plumes

Date:
January 28, 2002
Source:
Geological Society Of America
Summary:
The subject of mantle plumes--bodies of hot buoyant material that rise through Earth’s mantle--has become increasingly popular as scientists explore new links between mantle plumes and other Earth processes.

Boulder, Colo. -- The subject of mantle plumes--bodies of hot buoyant material that rise through Earth’s mantle--has become increasingly popular as scientists explore new links between mantle plumes and other Earth processes.

Related Articles


What are the origin and evolution of plumes as they rise through the mantle? Has the number of plumes varied with time? What is their connection to uplift, rifting, and continental break up? How are large volumes of magma transported thousands of kilometers from the plume center?

The best way to answer many of these questions is to examine the entire record of mantle plumes. Much has been written about young mantle plumes, but those between 250 and 4000 million years old must also be considered in order to have a complete picture of what mantle plumes are and how they function.

Richard E. Ernst and Kenneth L. Buchan from the Geological Survey of Canada have addressed this need by editing a new book, Mantle Plumes: Their Identification Through Time, published by the Geological Society of America as Special Paper 352 (November 2001). The editors and authors hope this work will stimulate further research in identifying and finding mantle plumes--particularly those more than 250 million years old. The book evolved from research presented at a Geological Society of America symposium.

“Our book provides a road map for the identification of plumes in the older record,” Ernst said. “Given the importance of mantle plumes in the geological evolution of Earth and also Venus and Mars, we need to provide geoscientists with a more varied and better constrained repertoire of techniques for identifying and characterizing mantle plumes in the geological record.”

The process of plate tectonics--which is so important on Earth--is apparently absent from Mars and Venus.

“This means that on Venus and Mars we can study the nature and effect of plumes in an environment where complications due to continental breakup, drift, and collision are absent,” Ernst explained.

Chapters provide new information and fresh insight into the nature of mantle plumes including: how to identify ancient plumes and distinguish their magmatic products; research on Mesozoic and Cenozoic plumes that can be applied to identifying and understanding plumes throughout time; examination of plumes on Mars and Venus and implications for understanding plumes on Earth; how to find the centers of magma plumes; a global compilation of rifts associated with plumes; a compilation of mafic magmatic events throughout geologic time; and a set of criteria to discern plume-related events.


Story Source:

The above story is based on materials provided by Geological Society Of America. Note: Materials may be edited for content and length.


Cite This Page:

Geological Society Of America. "A Rising Force: New Study On Ancient Mantle Plumes." ScienceDaily. ScienceDaily, 28 January 2002. <www.sciencedaily.com/releases/2002/01/020128080101.htm>.
Geological Society Of America. (2002, January 28). A Rising Force: New Study On Ancient Mantle Plumes. ScienceDaily. Retrieved March 4, 2015 from www.sciencedaily.com/releases/2002/01/020128080101.htm
Geological Society Of America. "A Rising Force: New Study On Ancient Mantle Plumes." ScienceDaily. www.sciencedaily.com/releases/2002/01/020128080101.htm (accessed March 4, 2015).

Share This


More From ScienceDaily



More Earth & Climate News

Wednesday, March 4, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Looted and Leaking, South Sudan's Oil Wells Pose Health Risk

Looted and Leaking, South Sudan's Oil Wells Pose Health Risk

AFP (Mar. 3, 2015) Thick black puddles and a looted, leaking ruin are all that remain of the Thar Jath oil treatment facility, once a crucial part of South Sudan&apos;s mainstay industry. Duration: 01:13 Video provided by AFP
Powered by NewsLook.com
Rare Rescued Butterflies Get New Home at San Diego Zoo

Rare Rescued Butterflies Get New Home at San Diego Zoo

Reuters - Light News Video Online (Mar. 3, 2015) Workers at the San Diego Zoo Safari Park help to save rare butterfly pupae. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Volcano Villarrica Erupts in Southern Chile, Villages Evacuated

Volcano Villarrica Erupts in Southern Chile, Villages Evacuated

Reuters - News Video Online (Mar. 3, 2015) Chile&apos;s Villarrica volcano gives a spectacular display of lava as it erupts in the early morning hours, prompting several thousand to evacuate. Mana Rabiee reports. Video provided by Reuters
Powered by NewsLook.com
Raw: Fire Burns Iconic SAfrica Mountain

Raw: Fire Burns Iconic SAfrica Mountain

AP (Mar. 3, 2015) Cape Town&apos;s iconic Table Mountain was engulfed by an orange blaze on Monday and Tuesday, blowing thick smoke to the city below, as a wildfire burned across the city&apos;s southern peninsula. (March 3) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins