This is a file from the Wikimedia Commons

File:Oceanic.Stripe.Magnetic.Anomalies.Scheme.gif

From Wikibooks, open books for an open world
Jump to navigation Jump to search

Oceanic.Stripe.Magnetic.Anomalies.Scheme.gif(255 × 187 pixels, file size: 15 KB, MIME type: image/gif)

Summary

Description

A theoretical model of the formation of magnetic striping. New oceanic crust forming continuously at the crest of the mid-ocean ridge cools and becomes increasingly older as it moves away from the ridge crest with seafloor spreading:

  • a. the spreading ridge about 5 million years ago.
  • b. about 2 to 3 million years ago.
  • c. present-day.
/!\ caution: the colours used on this picture may suggest that great amounts of magma are coming from beneath the lithosphere. That is not the case: only a small amount of magma is produced (red dots below the ridge crest). The orange part is Asthenosphere.
Date Unknown date
Unknown date
Source http://pubs.usgs.gov/publications/graphics/Fig7.gif
Author United States Geological Survey
Permission
(Reusing this file)
Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

Bahasa Indonesia  català  čeština  Deutsch  eesti  English  español  français  galego  italiano  Nederlands  português  polski  sicilianu  suomi  Tiếng Việt  Türkçe  български  македонски  русский  മലയാളം  한국어  日本語  中文  中文(简体)  中文(繁體)  العربية  فارسی  +/−

Other versions Derivative works of this file:  Oceanic Stripe Magnetic Anomalies Scheme He.jpg

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current13:09, 24 February 2006Thumbnail for version as of 13:09, 24 February 2006255 × 187 (15 KB)KurgusA theoretical model of the formation of magnetic striping. New oceanic crust forming continuously at the crest of the mid-ocean ridge cools and becomes increasingly older as it moves away from the ridge crest with seafloor spreading: * a. the spreadi

The following page uses this file:

Global file usage