Geologi, geomorfologi og lithosfæren

Geochemical Exploration for gold often times fail to produce favorable results because pathfinders for the gold were not properly identified. In others, pathfinders could not be linked to the horst-geology, and so high potential deposits have remained unexploited. The target in this study is to test the effectiveness of geostatistical tools (multivariate statistics) in identifying index and pathfinder elements during exploration for a mineral deposit, especially when a bulk geochemical data is involved. Logarithmic transformation was implored for data stationarity and normality. Hierarchical Cluster Analysis (HCA) and Principal Component Analysis (PCA) were used for the pathfinders. Inverse Distance Weighting (IDW) and Kriging were used in delineation of gold anomalous zones.

Rhizomicrobiome in Sustainable Agriculture and Environment explores the important potential of biocontrol agents in the reduction of overexploitation of synthetic pesticides, enhancing crop production, and maintaining the natural texture and health of agricultural soils. As concerns about sustainable production challenge current practices, this book presents opportunities for utilizing biological systems as part of the solution. Written by a team of global experts, sections explore the full range of rhizomicrobiome topics, including sustainable agriculture, food security, and environmental management. This will be a valuable resource for researchers, academics, and advanced students. Rhizomicrobiome is a significant part of plant biological system which impacts the plant growth and survival in different physiological conditions. Its composition includes different microbial networks whose presence is mainly impacted by the root exudates. Archaea, bacteria, protozoa, fungi, oomycetes, nematodes, microarthropods etc. are the significant parts of the rhizomicrobiome. Rhizomicrobiome could be that novel ecosystem housing the bioinoculants that can help create sustainable, productive growth environments.

Mountains as we know them were formed by a wide range of processes. This vivid introduction explains the course of orogeny (mountain formation) and the resulting structures, the cycles of plate tectonics and the evolution of landforms. It also presents surprising findings from the latest research. Popular travel destinations are described in detail ¿ ideal when preparing for a trip ¿ while a wealth of photos and graphics illustrate the text. Why are mountains as tall as they are? How does high-pressure rock come to the surface? Is there feedback between tectonics and the climate? How can mountains form without continental collision, far away from any plate boundaries? And how do we know all this? These and many other questions will be answered.

The book summarizes research work on the Wajid Sandstone, which provides integrated field and laboratory data to enable a detailed description of this unit including a facies analysis, porosity data, as well as permeability data to establish aquifer models. Detailed facies analysis at outcrop scale are supported by vertical and lateral sedimentological sections, facies and environmental analysis and supplemented by detailed laboratory petrographical and petrophysical data. The analysis and interpretation of the outcrop analog models include the reconstruction of the stratigraphic architecture at outcrop scale. Moreover, the results were described statistically, analyzed and eventually establish an outcrop-based aquifer model analogue. The book benefits undergraduate, graduate and researchers working on applied sedimentological studies, hydrogeology, statistical and geostatistical analysis and modeling.

This document includes the research background of the archaeological site of San Pedro de los Pinos-Mixcoac, located within Mexico City, as well as two archaeological research projects carried out in the surrounding area. The results and a delimitation proposal are shown. We hope that this work will be useful to the academic community, since the work of the Directorate of Archaeological Salvage of INAH tries to provide data for the knowledge of archaeological sites within urban contexts.

This book addresses problems of GNSS performance support under geomagnetic storms and solar radio bursts. It analyses both physical and radio-engineering sources of GNSS performance deterioration caused by geomagnetic storms, solar radio bursts and peculiarities of the polar and equatorial ionosphere. The book takes into consideration both standalone GNSS and differential GNSS. Based on experimental data analysis, it presents a systematic approach to maintaining reliable GNSS performance despite the Space Weather impacts.Given its scope, the book offers a valuable resource for GNSS users and equipment developers, as well as researchers and students whose work involves GNSS remote sensing, surveying, navigation, and related disciplines.

Although several excellent works exist that describe the effective elastic thickness (Te) of the lithosphere-its theory, significance and relevance to Earth sciences in general-none cover the details of the methods for its estimation. This book brings together the disparate knowledge required to estimate Te in one handy volume: signal processing, harmonic analysis, civil engineering, and foundational mathematics and physics, in addition to the relevant geophysics and, to a lesser extent, geology. Its two principal focus areas are spectral estimation, covering various approaches to estimating the admittance and coherence between gravity and topography using Slepian multitapers and fan wavelets; and algebraic and finite difference solutions of the plate bending partial differential equation in a variety of geological settings. This book would be suitable for postgraduate students beginning their research, up to faculty professors interested in diversifying their skills.

This book presents the theories and methods for geology intelligent interpretation based on deep learning and remote sensing technologies. The main research subjects of this book include lithology and mineral abundance. This book focuses on the following five aspects: 1. Construction of geology remote sensing datasets from multi-level (pixel-level, scene-level, semantic segmentation-level, prior knowledge-assisted, transfer learning dataset), which are the basis of geology interpretation based on deep learning. 2. Research on lithology scene classification based on deep learning, prior knowledge, and remote sensing. 3. Research on lithology semantic segmentation based on deep learning and remote sensing. 4. Research on lithology classification based on transfer learning and remote sensing. 5. Research on inversion of mineral abundance based on the sparse unmixing theory and hyperspectral remote sensing. The book is intended for undergraduate and graduate students who are interested in geology, remote sensing, and artificial intelligence. It is also used as a reference book for scientific and technological personnel of geological exploration.

This book focuses on Meso- to Neoproterozoic geology and Petroleum resources in China. It offers the oldest sediments knowledge for petroleum generation, accumulation, alteration and preservation in the world. It provides a valuable contribution to the understanding of a potential Precambrian oil and gas exploration realm through well-developed Meso- to Neoproterozoic sedimentary strata with petroleum resources. This work will appeal to a wide readership, from geologists, geochemists, petroleum prospector, university faculty members to advanced students working for Precambrian and petroleum geological and geochemical research.

This book comprehensively discusses the methods and practices for evaluating geochemical processes in aquifer groundwater. Possible occurrence and mechanisms of rock-water interaction, trace metal mobilization, thermodynamic explanation, actions of aquifer CO2, pollution sources, geogenic influencing factors, and isotope dilution methods are the primary areas of focus. These water quality variables are analyzed using a variety of logical/theoretical explanations, statistical techniques, and experimental procedures to determine the suitability of groundwater for drinking, irrigation, and other industrial purposes. The work is an important addition to hydrogeochemical literature since many existing indexing methods for the assessment of water quality are very old and have some degree of limitation. The book will be a useful resource for students, lecturers, and researchers working in the fields of hydrogeochemistry, hydrology, water pollution, and groundwater quality.

This book illustrates the main modern mineralogical analytical procedures that can be applied for forensic purposes on various typologies of materials and substances and has both theoretical and practical approach. Moreover, it focuses on all those challenges that can arise with forensic analysis, such as the choice of the most proper mineralogical techniques as a function of the material and its quantity, destructive and non-destructive analyses, sampling procedures, mineralogical analysis of micro-traces, correct preparation of the samples, correct calibration and analytical conditions of the laboratory instrumentation. Numerous case studies on criminal offenses against persons, environment and cultural heritage are illustrated.

Master's Thesis from the year 2014 in the subject Geography / Earth Science - Geology, Mineralogy, Soil Science, University of Manchester, course: Chemical Engineering with Design, language: English, abstract: The effect of bacteria activity on flow properties in porous media have been documented in the past. Although some of such effects were viewed as negative in some applications, such as water treatment systems and aquifer recharge these effects have been found useful in the water flooding process for enhanced oil recovery, the so called microbial enhanced oil recovery MEOR. MEOR is influenced by the clogging ability of microbes such that they are used to clog high permeability zones in the reservoir, thereby redirecting the flow of water into areas of low permeability. Aside from the ability of bacteria in pores clogging other factors affect the effectiveness of the MEOR including the grain size of the formation media, the nutrient availability and the physical and chemical properties of environment. In this project, the effect of grain size on the bioclogging and corresponding alternation of the hydraulic properties of porous media are investigated. Also the visual effect of microbial growth on the various grain sizes is observed using a Scanning Electron Microscope. Three sands of different grain sizes and texture are used to conduct the experiments with the average grain size of 166¿m, 355¿m and 1440¿m. Microbes were allowed to grow in sand column with sucrose as carbon source and SEM images were taken on the last day.

This edited book is based on the accepted papers for presentation at the 1st MedGU Annual Meeting, Istanbul 2021. With three sections spanning a large spectrum of geological and geoenvironmental topics, this book presents a series of newest research studies that are nowadays relevant to Middle East, Mediterranean region, and Africa.The book includes major subjects related to hydrogeology, geoecology, and atmospheric sciences. Case studies are from the fields of hydrology, hydrogeology, hydrogeochemistry and water resources, biogeochemistry, geobiology and geoecology, atmospheric sciences, meteorology, climatology, and oceanography.

More than two decades of study have established the major features of lunar geologic style and history. The most numerous and significant landforms belong to a size-morphology series of simple craters, complex craters, and ringed basins that were formed by impacts. Each crater and basin is the source of primary ejecta and secondary craters that, collectively, cover the entire terra. The largest impacts thinned, weakened, and redistributed feldspathic terracrustal material averaging about 75 km in thickness. Relatively small volumes of basalt, generated by partial remelting of mantle material, were erupted through the thin subbasin and subcrater crust to form the maria that cover 16 percent of the lunar surface. Tectonism has modified the various stratigraphic deposits relatively little; most structures are confined to basins and large craters. This general geologic style, basically simple though complex in detail, has persisted longer than 4 aeons (1 aeon = 109 yr). Impacts began to leave a visible record about 4.2 aeons ago, after the crust and mantle had differentiated and the crust had solidified. At least 30 basins and 100 times that many craters larger than 30 km in diameter were formed before a massive impact created the Nectaris basin about 3.92 aeons ago. Impacts continued during the ensuing Nectarian Period at a lesser rate, whereas volcanism left more traces than during pre-Nectarian time. ¿The latest basin-forming impacts created the giant and still-conspicuous Imbrium and Orientale basins during the Early Imbrian Epoch, between 3.85 and 3.80 aeons ago. The rate of crater-forming impacts continued to decline during the Imbrian Period. Beginning in the Late Imbrian Epoch, mare-basalt flows remained exposed because they were no longer obscured by many large impacts. The Eratosthenian Period (3.2-1.1 aeons ago) and the Copernican Period (1.1 aeons ago to present) were times of lesser volcanism and a still lower, probably constant impact rate. Copernican impacts created craters whose surfaces have remained brighter and topographically crisper than those of the more ancient lunar features.

The Pyramid flora (15.8 m. years) is wholly dominated by broadleaved deciduous hardwoods of eastern alliance that indicate ample summer rain. Deciduous hardwoods are largely absent from slightly younger nearby floras (less than 15.8 m. years) that are dominated by mixed conifer and broadleaved evergreen forest species. The change is attributed to reduced summer rain that reflects global climatic change influenced by spreading antarctic ice.