the mikkes basin is located at the north center of morocco. it comprises three different zones which represent diversified geologies which shelter a phreatic and confined aquifer in the sais basin and a shallow aquifer in the tabular middle atlas. the springs in the sais phreatic aquifer have suffered a maximum depletion. the springs with a deep or mixed origin are known as low flow variation s...

Simulation of CO2 storage in geological formations inherently involves decisions concerning relevant physics, upscaling, and numerical modeling. We propose a benchmark study designed to assess the impact of these necessary choices, within the context of storage in a conceptually simple geological formation. The benchmark asks for answers to relevant questions regarding the ultimate fate of the ...

The Deep Impact mission will provide the highest resolution images yet of a comet nucleus. Our knowledge of the makeup and structure of cometary nuclei, and the processes shaping their surfaces, is extremely limited, thus use of the Deep Impact data to show the geological context of the cratering experiment is crucial. This article briefly discusses some of the geological issues of

Recent research has suggested that changes in temperature and precipitation events due to climate change have had a significant impact on the availability and timing of streamflow. In this study, monthly temperature and precipitation data collected over 29 climate divisions covering the entire Colorado River basin and monthly natural flow data from 29 U.S. Geological Survey (USGS) gauge locatio...

Introduction: Landing on Venus and geochemical investigations of Venusian materials either in-situ or with returned samples are thought to be of the highest priority in future scientific robotic exploration of Ve-nus. Harsh conditions at the surface strongly limit mobility and operations at the landing sites, as well as the total number of different samples that can be analyzed. This makes it e...

This chapter will summarize the historical development of geology and in particular the development of the modern uniformitarian view of the geological record and the millions-of-years time-scale. The important proponents of old-earth thinking (including Werner, Smith, Hutton, Cuvier, and Lyell) along with some of the opponents of this view as it was developing (the scriptural geologists) will ...

theoretical discussion of toolkit composition and assemblage variability intriguing, their interpretation of the Nogahabara I site as a single, short-term occupation, reflecting a systemic assemblage unbiased by taphonomic disturbance, is unsubstantiated by the data presented in their article. Because their argument hangs on the premise that all of the artifacts are the same age and represent a...

Geophonography is a practice of sonifying the geological record, of tracing what Friedrich Kittler referred to as "signatures of the real". The aesthetic efficacy of techniques for audifying and visualising data derived from geological materials is discussed within the context of Ur-writings, a piece by the author first exhibited in 2013. Tracing a line through the work of Freud, Adorno, Kittle...

Data from the U.S. Geological Survey (USGS) collocated-sampler program for the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) are used to estimate the overall error of NADP/NTN measurements. Absolute errors are estimated by comparison of paired measurements from collocated instruments. Spatial and temporal differences in absolute error were identified and are consist...