scholarly journals Magnetostratigraphy of the Ganyanchi (Salt Lake) Basin along the Haiyuan fault, northeastern Tibet

Geosphere ◽  
2018 ◽  
Vol 14 (5) ◽  
pp. 2188-2205 ◽  
Author(s):  
Shengxue Lei ◽  
Yanbao Li ◽  
Eric Cowgill ◽  
Kenneth L. Verosub ◽  
Shuaipo Gao ◽  
...  
Keyword(s):  
Salt Lake ◽  
Lake Basin ◽  
Northeastern Tibet

Shallow Damage Zone Structure of the Wasatch Fault in Salt Lake City from Ambient-Noise Double Beamforming with a Temporary Linear Array

2021 ◽  
Author(s):  
Konstantinos Gkogkas ◽  
Fan-Chi Lin ◽  
Amir A. Allam ◽  
Yadong Wang
Keyword(s):  
Ambient Noise ◽  
Cross Correlation ◽  
Salt Lake ◽  
Weighted Least Squares ◽  
Damage Zone ◽  
Salt Lake City ◽  
Fault System ◽  
Lake Basin ◽  
Lake City ◽  
Wasatch Fault

Abstract We image the shallow structure across the East Bench segment of the Wasatch fault system in Salt Lake City using ambient noise recorded by a month-long temporary linear seismic array of 32 stations. We first extract Rayleigh-wave signals between 0.4 and 1.1 s period using noise cross correlation. We then apply double beamforming to enhance coherent cross-correlation signals and at the same time measure frequency-dependent phase velocities across the array. For each location, based on available dispersion measurements, we perform an uncertainty-weighted least-squares inversion to obtain a 1D VS model from the surface to 400 m depth. We put all piece-wise continuous 1D models together to construct the final 2D VS model. The model reveals high velocities to the east of the Pleistocene Lake Bonneville shoreline reflecting thinner sediments and low velocities particularly in the top 200 m to the west corresponding to the Salt Lake basin sediments. In addition, there is an ∼400-m-wide low-velocity zone that narrows with depth adjacent to the surface trace of the East Bench fault, which we interpret as a fault-related damage zone. The damage zone is asymmetric, wider on the hanging wall (western) side and with greater velocity reduction. These results provide important constraints on normal-fault earthquake mechanics, Wasatch fault earthquake behavior, and urban seismic hazard in Salt Lake City.

Climate and Diet in Fremont Prehistory: Economic Variability and Abandonment of Maize Agriculture in the Great Salt Lake Basin

2002 ◽  
Vol 67 (3) ◽  
pp. 453-485 ◽  
Author(s):  
Joan Brenner Coltrain ◽  
Steven W. Leavitt
Keyword(s):  
Stable Isotope ◽  
Salt Lake ◽  
Great Salt Lake ◽  
Temporal Correlation ◽  
Bone Collagen ◽  
Initial Increase ◽  
Lake Basin ◽  
Maize Agriculture ◽  
Economic Diversity ◽  
Economic Strategies

Research reported here is based on the stable isotope (δ 13C,δ 15N) and radiocarbon chemistry of Fremont burials from wetlands lining the eastern shores of the Great Salt Lake (GSL). Bone collagen stable isotope signatures covary with reliance on maize and intake of animal protein, facilitating useful reconstructions of past diet. Among the GSL Fremont, economic strategies vary over time with an initial increase in reliance on maize (A.D. 400–850) followed by a period of marked economic diversity (A.D 850–1150) then a return to reliance on wild foods (after A.D. 1150). During the period of greatest economic diversity, male and female diets vary significantly and male diets are correlated with status differences evidenced by grave goods. There is also a clear temporal correlation between the rapid abandonment of maize agriculture and significant moisture anomalies in regional tree-ring chronologies and pollen profiles. These results are discussed in the context of recent arguments regarding economic diversity, social complexity, and the demise of the Fremont.

Helminth Parasites of the American Avocet Recurvirostra americana (Aves), from the Salt Lake Basin, Utah

1993 ◽  
Vol 79 (1) ◽  
pp. 114 ◽  
Author(s):  
Jose G. Hinojos ◽  
Barbara K. Campbell ◽  
Albert G. Canaris
Keyword(s):  
Salt Lake ◽  
Lake Basin ◽  
Helminth Parasites ◽  
American Avocet ◽  
Recurvirostra Americana

scholarly journals A MAP MASH-UP APPLICATION: INVESTIGATION THE TEMPORAL EFFECTS OF CLIMATE CHANGE ON SALT LAKE BASIN

2016 ◽  
Vol XLI-B4 ◽  
pp. 221-226
Author(s):  
O. S. Kirtiloglu ◽  
O. Orhan ◽  
S. Ekercin
Keyword(s):  
Climate Change ◽  
Web Application ◽  
Vegetation Index ◽  
Salt Lake ◽  
Standardized Precipitation Index ◽  
Geographical Information ◽  
Lake Basin ◽  
Landsat Images ◽  
Google Maps ◽  
Normalised Difference Vegetation Index

The main purpose of this paper is to investigate climate change effects that have been occurred at the beginning of the twenty-first century at the Konya Closed Basin (KCB) located in the semi-arid central Anatolian region of Turkey and particularly in Salt Lake region where many major wetlands located in and situated in KCB and to share the analysis results online in a Web Geographical Information System (GIS) environment. 71 Landsat 5-TM, 7-ETM+ and 8-OLI images and meteorological data obtained from 10 meteorological stations have been used at the scope of this work. 56 of Landsat images have been used for extraction of Salt Lake surface area through multi-temporal Landsat imagery collected from 2000 to 2014 in Salt lake basin. 15 of Landsat images have been used to make thematic maps of Normalised Difference Vegetation Index (NDVI) in KCB, and 10 meteorological stations data has been used to generate the Standardized Precipitation Index (SPI), which was used in drought studies. For the purpose of visualizing and sharing the results, a Web GIS-like environment has been established by using Google Maps and its useful data storage and manipulating product Fusion Tables which are all Google’s free of charge Web service elements. The infrastructure of web application includes HTML5, CSS3, JavaScript, Google Maps API V3 and Google Fusion Tables API technologies. These technologies make it possible to make effective “Map Mash-Ups” involving an embedded Google Map in a Web page, storing the spatial or tabular data in Fusion Tables and add this data as a map layer on embedded map. The analysing process and map mash-up application have been discussed in detail as the main sections of this paper.

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