File:Treesmed.gif

No higher resolution available.

Treesmed.gif ‎(640 × 468 pixels, file size: 145 KB, MIME type: image/gif)

Captions

English

Add a one-line explanation of what this file represents

DescriptionTreesmed.gif	This 84-million-year-old air bubble lies trapped in amber (fossilized tree sap). Using a quadrupole mass spectrometer, scientists can learn what the atmosphere was like when the dinosaurs roamed the earth.
Source	http://minerals.cr.usgs.gov/gips/na/treeslrg.gif
Author	USGS/USGov.
Permission (Reusing this file)	Free for all use

	This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

PDMCreative Commons Public Domain Mark 1.0falsefalse

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

	Date/Time	Thumbnail	Dimensions	User	Comment
current	12:07, 9 February 2007		640 × 468 (145 KB)	Zimbres (talk \| contribs)	{{Information \|Description=This 84-million-year-old air bubble lies trapped in amber (fossilized tree sap). Using a quadrupole mass spectrometer, scientists can learn what the atmosphere was like when the dinosaurs roamed the earth. \|Source=http://mineral

You cannot overwrite this file.

There are no pages that use this file.

The following other wikis use this file: