Anthropogenic effects on climate can be mitigated through various measures, among them being CO2 sequestration in geological media. Geological sinks for CO2 do not need any major new technological development; the technology exists and has been applied for other uses. The challenge is rather to identify the most appropriate methods and sites for long-term sequestration. There are several potent...

The “honeycomb” terrain is a Noachian-aged cluster of ∼7 km wide linear cell-like depressions located on the northwestern floor of Hellas basin, Mars. A variety of origins have been proposed for the honeycomb terrain, including deformation rings of subglacial sediment, frozen convection cells from a Hellas impact melt sheet, a swarm of igneous batholiths, salt diapirism, and ice diapirism. Rece...

Given a data stream with many attributes, how to cluster similar events? For example, how to cluster measurements of tens of climatic attributes to aid in forecasting the climate and extreme events? The task of clustering data with many attributes is known as subspace clustering. Today, there exists a need for algorithms of this type well-suited to process data streams. This paper proposes the ...

The hyper-arid core of the Atacama Desert (Chile) is the driest place on Earth and is considered a close analogue to the extremely arid conditions on the surface of Mars. Microbial life is very rare in soils of this hyper-arid region, and autotrophic micro-organisms are virtually absent. Instead, photosynthetic micro-organisms have successfully colonized the interior of halite crusts, which are...

The Arden Sandstone Formation of central and western England is a thin but conspicuous arenaceous unit within the Late Triassic Mercia Mudstone Group. Sedimentological palaeontological data point to lacustrine depositional conditions, in contrast red desert mudstones above below which were deposited as continental dryland floodplains. records deposits lake margins may be high stand lateral equi...

The research aims to study Sabkha mineralogy determine the mineral types, nature of precipitation, and patterns salt crystallization. Two Sabkhas in Abu Ghraib, west Baghdad, were studied. It was found that formed flat ponds from saturated solutions a semi-arid arid climate. Halite predominates, followed by anhydrite gypsum as evaporite minerals. As for minerals soil, it consisted feldspar, cal...