Results 41 to 50 of about 15,452 (136)

Advanced geometrical constructs in a Pueblo ceremonial site, c 1200 CE

open access: yes, 2017
Summer 2015 marked the 100th anniversary of the excavation by J.W. Fewkes of the Sun Temple in Mesa Verde National Park, Colorado, an ancient complex prominently located atop a mesa, constructed by the ancestral Pueblo peoples approximately 800 years ago.
Towers, Sherry
core   +1 more source

Compiling a GIS database of tree farms on Leyte Island [PDF]

open access: yes, 2007
As part of ACIAR project ASEM/2003/052, Improving Financial Returns to Smallholder Tree Farmers in the Philippines, plantations of timber trees in Leyte Island, the Philippines were located using a systematic survey of the island.
Bernaldez, S., Gordon, M.
core  

Archaeological and Historical Investigations at Rancho de las Cabras, 41WN30, Wilson County, Texas: Fourth Season [PDF]

open access: yes, 1998
During the month of July, 1983, the Center for Archaeological Research conducted a fourth season of excavations at Rancho de las Cabras (41 WN30) near Floresville, Texas. Eleven excavation units were completed in the east part of the compound. Details of
Fox, Anne A., Houk, Brett A.
core   +3 more sources

Tectonic control on southern Sierra Nevada topography, California [PDF]

open access: yes, 2009
In this study we integrate the apatite (U-Th)/He thermochronometric technique with geomorphic, structural, and stratigraphic studies to pursue the origin and evolution of topographic relief related to extensive late Cenozoic faulting in the southern ...
Farley, Kenneth A.   +3 more
core   +1 more source

A Process for Producing Ice Coverage Marine Information Objects (MIOs) in IHO S-57 Format [PDF]

open access: yes, 2006
While global warming may be opening up more Arctic waters in the summer, ice still infests key shipping lanes in the northern hemisphere during the winter months.
Agi, Benson   +4 more
core   +2 more sources

Introduction to GPS and Geocaching [PDF]

open access: yes, 2002
Grade Level(s): 6-12To familiarize students with GPS (Global Positioning Systems) and GIS (Geographic Information Systems).St.
Nieboer, Kourtney C.
core  

Archaeological and Historical Investigations at the West End of the Martin and Bowie Streets Connections, San Antonio, Bexar County, Texas [PDF]

open access: yes, 1989
Test excavations were conducted in November 1987 by the Center for Archaeological Research, The University of Texas at San Antonio at the site of a planned relocation of the eastbound lanes of Martin Street in downtown San Antonio.
Cox, I. Waynne   +2 more
core   +2 more sources

Global satellite triangulation and trilateration for the National Geodetic Satellite Program (solutions WN 12, 14 and 16) [PDF]

open access: yes
A multi-year study and analysis of data from satellites launched specifically for geodetic purposes and from other satellites useful in geodetic studies was conducted.
Kumar, M.   +4 more
core   +1 more source

The Curculionoidea of the Maltese Islands (Central Mediterranean) (Coleoptera) [PDF]

open access: yes, 2010
The Curculionoidea of the families Anthribidae, Rhynchitidae, Apionidae, Nanophyidae, Brachyceridae, Curculionidae, Erirhinidae, Raymondionymidae, Dryophthoridae and Scolytidae from the Maltese islands are reviewed.
Colonnelli, Enzo, Mifsud, David
core  

ABRAHAM LINCOLN: CENTRALIZING CLASS WARRIOR [PDF]

open access: yes
Abraham Lincoln was the great centralizer. His War of 1861 was only the tip of the iceberg in this regard. This core of his philosophy can also be seen in his “contributions” to class warfare, the American “system” of public works, strong tariff ...
Walter Block, William Barnett II
core  

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