Abstract. The preservation of calcium carbonate in marine sediments is central to controlling the alkalinity balance ocean and, hence, ocean–atmosphere partitioning CO2. To successfully address carbon cycle–climate dynamics on geologic (?1 kyr) timescales, Earth system models then require an appropriate representation primary controls CaCO3 preservation. At same time, sedimentary carbonates rep...

Geologic uncertainty in underground construction promotes design and construction conservatism and has a significant effect on project cost. Site investigation can reduce this uncertainty and decrease costs by reducing the contingency amounts included in bids. This paper presents research findings that provide a better understanding of how subsurface exploration and improved contractual risk sh...

According to the field investigation data, a meteorological forecast and alarm model of geologic disasters in Hefei Area has been established. This model was based on GIS raster data model in order to be integrated with GIS Digital Terrain Model (DTM) Component Object Model (COM). Some important factors that put premium on geological hazards, such as intraday and five-day forecasting and limina...

We report on a preliminary global geologic map of Vesta, based on data from the Dawn spacecraft’s HighAltitude Mapping Orbit (HAMO) and informed by Low-Altitude Mapping Orbit (LAMO) data. This map is part of an iterative mapping effort; the geologic map has been refined with each improvement in resolution. Vesta has a heavily-cratered surface, with large craters evident in numerous locations. T...

Remote sensing plays an enormous role in our understanding of the geology of solid bodies in the solar system. Inferences based on remote sensing of planetary surfaces require the use of two types of models: one for the scattering and emission of electromagnetic radiation from matter; and one which quantitatively describes the surface composition and roughness of geologic surfaces. Here, we use...

The U.S. Department of Energy (DOE) is the lead Federal agency for the development and deployment of carbon sequestration technologies. As part of its mission to facilitate technology transfer and develop guidelines from lessons learned, DOE is developing a series of best practice manuals (BPMs) for carbon capture and storage (CCS). The ―Site Screening, Site Selection, and Initial Characterizat...