Featured Research

from universities, journals, and other organizations

An Ancient Inca Tax And Metallurgy In Peru

Date:
April 24, 2007
Source:
American Chemical Society
Summary:
Scientists in the United States and Canada are reporting the first scientific evidence that ancient civilizations in the Central Andes Mountains of Peru smelted metals, and hints that a tax imposed on local people by ancient Inca rulers forced a switch from production of copper to silver.

Scientists in the United States and Canada are reporting the first scientific evidence that ancient civilizations in the Central Andes Mountains of Peru smelted metals, and hints that a tax imposed on local people by ancient Inca rulers forced a switch from production of copper to silver.

Their study is scheduled for the May 15 issue of ACS' Environmental Science & Technology, a semi-monthly journal.

The University of Alberta's Colin A. Cooke and colleagues point out that past evidence for metal smelting, which involves heating ore to extract pure metal, was limited mainly to the existence of metal artifacts dating to about 1,000 A.D. and the Wari Empire that preceded the Inca. The new evidence emerged from a study of metallurgical air pollutants released from ancient furnaces during the smelting process and deposited in lake sediments in the area.

By analyzing metals in the sediments, the researchers recreated a 1,000-year history of metal smelting in the area, predating Francisco Pizarro and his Spanish conquistadors by 600 years. Their findings show that smelters in the Morococha region of Peru switched from production of copper to silver around the time that Inca rulers imposed a tax, payable in silver, on local populations.

Article: "A Millennium of Metallurgy Recorded by Lake Sediments from Morococha, Peruvian Andes"


Story Source:

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


Cite This Page:

American Chemical Society. "An Ancient Inca Tax And Metallurgy In Peru." ScienceDaily. ScienceDaily, 24 April 2007. <www.sciencedaily.com/releases/2007/04/070423100437.htm>.
American Chemical Society. (2007, April 24). An Ancient Inca Tax And Metallurgy In Peru. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/2007/04/070423100437.htm
American Chemical Society. "An Ancient Inca Tax And Metallurgy In Peru." ScienceDaily. www.sciencedaily.com/releases/2007/04/070423100437.htm (accessed August 20, 2014).

Share This




More Fossils & Ruins News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Disquieting Times for Malaysia's 'fish Listeners'

Disquieting Times for Malaysia's 'fish Listeners'

AFP (Aug. 19, 2014) Malaysia's last "fish listeners" -- practitioners of a dying local art of listening underwater to locate their quarry -- try to keep the ancient technique alive in the face of industrial trawling and the depletion of stocks. Duration: 02:29 Video provided by AFP
Powered by NewsLook.com
Mother And Son Find Woolly Mammoth Tusks 22 Years Apart

Mother And Son Find Woolly Mammoth Tusks 22 Years Apart

Newsy (Aug. 15, 2014) A mother and son in Alaska uncovered woolly mammoth tusks in the same river more than two decades apart. Video provided by Newsy
Powered by NewsLook.com
Fossils Reveal Ancient Flying Reptile With 'Butterfly Head'

Fossils Reveal Ancient Flying Reptile With 'Butterfly Head'

Newsy (Aug. 14, 2014) Newly found fossils reveal a previously unknown species of flying reptile with a really weird head, which some say looks like a butterfly. Video provided by Newsy
Powered by NewsLook.com
Clearing WWII's Explosive Legacy in the Pacific

Clearing WWII's Explosive Legacy in the Pacific

AFP (Aug. 11, 2014) The hulks of tanks can still be found rusting in the jungles of Palau, but the fierce fighting that scarred the Pacific island nation in WWII has left a more dangerous legacy - unexploded bombs that pose a constant risk to locals. Duration: 00:47 Video provided by AFP
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:
from the past week

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