scholarly journals Pleistocene to recent geomorphic and incision history of the northern Rio Grande gorge, New Mexico: Constraints from field mapping and cosmogenic 3He surface exposure dating

Geosphere ◽  
2019 ◽  
Vol 15 (3) ◽  
pp. 820-838 ◽  
Author(s):  
T. Clow ◽  
W.M. Behr ◽  
M.A. Helper
Keyword(s):  
New Mexico ◽  
Rio Grande ◽  
Field Mapping ◽  
Surface Exposure Dating ◽  
Exposure Dating ◽  
History Of ◽  
Northern Rio Grande

GEOMORPHIC AND INCISION HISTORY OF THE NORTHERN RIO GRANDE RIVER GORGE NEAR QUESTA, NEW MEXICO

2016 ◽  
Author(s):  
Travis W. Clow ◽  
◽  
Whitney M. Behr ◽  
Mark Helper ◽  
Peter Gold ◽  
...  
Keyword(s):  
New Mexico ◽  
Rio Grande ◽  
History Of ◽  
Rio Grande River ◽  
Northern Rio Grande

Earthquake Hazard Estimation in Areas of Low Historical Seismicity: A Focus on the Northern Rio Grande Rift, Colorado and New Mexico

1990 ◽  
Vol 6 (4) ◽  
pp. 657-680 ◽  
Author(s):  
Charles E. Glass
Keyword(s):  
New Mexico ◽  
Gaussian Model ◽  
Rio Grande ◽  
Earthquake Hazard ◽  
Weibull Model ◽  
Historical Seismicity ◽  
Rio Grande Rift ◽  
Earthquake Activity ◽  
Sangre De Cristo ◽  
Northern Rio Grande

Estimates of the probability of future earthquake activity are difficult to make in areas where historical seismicity may be low or absent, but where young fault scarps attest to recent or ongoing tectonism. Three non-Poisson models, a Weibull model, a Gaussian model and a lognormal model, are used to estimate the earthquake hazard for one such area, the northern Rio Grande Rift. This portion of the Rio Grande Rift displays numerous Holocene faults attesting to ongoing tectonism, but displays essentially no historical seismicity. The earthquake hazard for the Sangre de Cristo fault zone from Taos, New Mexico to Salida, Colorado calculated using these models is remarkably consistent (probability of at least one Mo = 7 earthquake in the next 50 years ∼ 2.5 × 10−3), with increased hazard for the Sangre de Cristo fault in north San Luis Valley (∼5.0×10−3) and near Taos (∼1.0×10−2) due to the long holding times along these segments.

scholarly journals Refining the footwall cooling history of a rift flank uplift, Rio Grande rift, New Mexico

Tectonics ◽  
2003 ◽  
Vol 22 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
M. A. House ◽  
S. A. Kelley ◽  
M. Roy
Keyword(s):  
New Mexico ◽  
Rio Grande ◽  
Rio Grande Rift ◽  
Cooling History ◽  
History Of

Slip history of the Magnola fault (Apennines, Central Italy) from 36Cl surface exposure dating: evidence for strong earthquakes over the Holocene

2004 ◽  
Vol 225 (1-2) ◽  
pp. 163-176 ◽  
Author(s):  
Luigi Palumbo ◽  
Lucilla Benedetti ◽  
Didier Bourlès ◽  
Aldo Cinque ◽  
Robert Finkel
Keyword(s):  
Central Italy ◽  
Strong Earthquakes ◽  
The Holocene ◽  
Surface Exposure Dating ◽  
Exposure Dating ◽  
Slip History ◽  
History Of

The Construction and Configuration of Anasazi Pebble-Mulch Gardens in the Northern Rio Grande

1995 ◽  
Vol 60 (3) ◽  
pp. 459-470 ◽  
Author(s):  
Dale R. Lightfoot ◽  
Frank W. Eddy
Keyword(s):  
Soil Moisture ◽  
New Mexico ◽  
Crop Yields ◽  
Rio Grande ◽  
Growing Season ◽  
Size And Shape ◽  
Galisteo Basin ◽  
Northern Rio Grande ◽  
Increase Soil Moisture

Rio Grande Anasazi in the fourteenth and fifteenth centuries A.D. mulched hundreds of garden-sized plots with pebbles to increase soil moisture, reduce erosion, extend the growing season, and increase crop yields. This paper reports on the construction and configuration of pebble-mulch gardens in New Mexico, focusing particularly on those in the Galisteo Basin. Surfaces adjacent to these gardens were scraped and pits were excavated to collect gravel, which was placed over garden surfaces in layers 5 to 11 cm thick. Gardens averaged 15 x 23 m in size, although both size and shape were highly variable, and they collectively covered an area of 41,000 m2 Although this unique agricultural strategy has been shown to be effective, construction was limited to sites with natural gravel deposits, pebbled surfaces inhibited the recycling of crop wastes, and such gardens never became as widely used as more traditional field forms.

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