Results 51 to 60 of about 517 (108)

A transverse fault in an extended terrane, the Currant Summit Fault, Nevada

open access: yes, 2000
Transverse faults in extensional terranes strike parallel to subparallel to the extension direction, are laterally continuous, and terminate abruptly.
Williams, Nathan David
core   +1 more source

Using Survey Data and HEC-RAS Modeling to Assess a Riffle-Remediation Structure on the Big River, Bonne Terre, Missouri [PDF]

open access: yes, 2017
Sediment transport and deposition in river channels can vary for many reasons including flooding, dredging, channel velocity, and grain size. On the Big River, the Army Corps of Engineers constructed a riffle ramp structure to trap and remediate lead ...
Weedman, Nichole Renee
core   +1 more source

An Analysis of Lithic Materials and Morphology from the Late Maritime Woodland and Protohistoric Periods at the Devil’s Head site in the Maine Quoddy Region [PDF]

open access: yes, 2016
Archaeologists have reached different conclusions about hunter-gatherer settlement-subsistence strategies during the Maritime Woodland period (3150-550BP) in Maine and New Brunswick’s Quoddy Region.
Shaw, Chris E
core   +1 more source

Data Report: Petrography and Geochemistry of Jasperoids from Site 1189, Ocean Drilling Program Leg 193

open access: yes, 2006
Bright red "jasperoids" were recovered at three positions during Leg 193 drilling below Roman Ruins (Site 1189) in the PACMANUS hydrothermal field. These do not represent fossil exhalative oxide deposits equivalent to those associated with sulfide chimneys at the Roman Ruins seafloor.
openaire   +1 more source

BUREAU OF MINES [PDF]

open access: yes
adminjstered land designated as Mil derness Study Areas "... to determine the mineral values, if any, that may be present.... " Resul ts must be made available to the public and be submitted to the President and the Congress.
Edward L. Mchugh
core  

Analytical results and sample locality map of jasperoid samples from Mackay, Idaho [PDF]

open access: yesOpen-File Report, 1988
Sandra J. Soulliere   +3 more
openaire   +1 more source

Sulfide-, fluorite-, barite-bearing siliceous "crusts" related to unconformity surfaces of different ages in Pyrenees and Alps: a new model in carbonate-hosted deposits? [PDF]

open access: yes, 1995
Wumerous stratabound sulfide-, barite-, fluonte-bearing siliceous crusts, from dm to some tens of in thick, occur over large areas of the Alpine belt, ;.e. the Alps and the Pyrenees. They are linked to unconformlty landscapes evolved on various carbonate
BRIGO, L.   +5 more
core   +1 more source

The TIMS Data User's Workshop [PDF]

open access: yes
A workshop was held to bring together all users of data from NASA's airborne Thermal Infrared Multispectral Scanner (TIMS). The purpose was to allow users to compare results, data processing algorithms, and problems encountered; to update the users on ...
Abbott, Elsa, Kahle, Anne B.
core   +1 more source

Fluid inclusion geothermometry of Tri-State sphalerite [PDF]

open access: yes, 1975
Fluid inclusions in successively deposited generations of sphalerite from the Tri-State district have been examined for geothermometry as a function of time.
Wei, Chi-Sheng
core   +1 more source

Travertinos y jasperoides de Manantial Espejo, un ambiente Hot Spring Jurásico: Macizo del Deseado, Provincia de Santa Cruz, Argentina

open access: yesLatin American Journal of Sedimentology and Basin Analysis, 2021
En este trabajo se analiza el origen y las relaciones entre travertinos y jasperoides intercalados en rocas volcaniclásticas jurásicas en el distrito argento-aurífero Manantial Espejo, ubicado en el borde sur-occidental del Macizo del Deseado, provincia de Santa Cruz, Argentina.
openaire   +3 more sources

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