Small-scale geological mapping on Earth: Setting up guidelines, standards and portrayal rules. Experience from pan-European projects

2021 ◽  
Author(s):  
Kristine Asch
Keyword(s):  
Spatial Databases ◽  
Geological Mapping ◽  
Small Scale ◽  
Information Process ◽  
Advantages And Disadvantages ◽  
Geological Information ◽  
Ship Tracks ◽  
Process Event ◽  
Boundary Mapping ◽  
Spatial Databases And Gis

<p>Geological mapping and cartography on Earth encompasses principally the description of the landforms, i.e. geomorphology, the lithology and the age (stratigraphy) of the rocks found at or beneath the Earth’s surface. By interpretation of this information genetic information (process, event and environment) can be derived from the rock units encountered and often is included in geological maps, in particular in larger scale maps.</p><p>Mapping agencies and geological survey organisations everywhere have for centuries been developing their own regional or national mapping methods and representation colour sets and symbols to represent the geological information on paper and now in spatial databases and GIS.</p><p>BGR and its predecessors has been undertaking geological mapping at both large and small scales since the 19<sup>th</sup> century and through this has gained considerable mapping experience. This contribution describes the establishment of mapping rules and guidelines for three small-scale European cross-boundary mapping projects implemented through international cooperation: the IGME 5000 (pre-Quaternary) and the IQUAME (Quaternary) projects, and the EMODnet Geology seafloor work-package. The experience gained within the projects in the creation and use of standardised specifications for data models and cartographic aspects such as symbols and colours will be introduced and challenges, advantages and disadvantages  will be discussed.</p><p>All three projects include off-shore geological information; in particular these aspects of the marine mapping and cartography may be partly comparable to planetary mapping, since “even with all the technology that we have today -- satellites, buoys, underwater vehicles and ship tracks -- we have better maps of the surface of Mars and the Moon than we do the bottom of the ocean.” [Gene Feldmann, NASA, 10.08.2009].</p><p>Thus the experience and results in Earth mapping described may contribute and serve as “good practise” for the benefit of the fascinating new field of planetary mapping.</p><p> </p>

Accuracy of Failure Criteria Commonly Used for Ship Collision Simulations

2018 ◽  
Author(s):  
R. Villavicencio ◽  
Bin Liu ◽  
Kun Liu
Keyword(s):  
Finite Element ◽  
Failure Criteria ◽  
Small Scale ◽  
Finite Element Models ◽  
Impact Loads ◽  
Large Scatter ◽  
Element Analysis ◽  
Advantages And Disadvantages ◽  
Ship Collision ◽  
Double Hull

The paper summarises observations of the fracture response of small-scale double hull specimens subjected to quasi-static impact loads by means of simulations of the respective experiments. The collision scenarios are used to evaluate the discretisation of the finite element models, and the energy-responses given by various failure criteria commonly selected for collision assessments. Nine double hull specimens are considered in the analysis so that to discuss the advantages and disadvantages of the different failure criterion selected for the comparison. Since a large scatter is observed from the numerical results, a discussion on the reliability of finite element analysis is also provided based on the present study and other research works found in the literature.

scholarly journals The Triumph of Large-Scale Agriculture and Its Socioeconomic Impact

2018 ◽  
Vol 43 (2) ◽  
pp. 95-106
Author(s):  
András Schlett ◽  
Judit Beke
Keyword(s):  
Rural Areas ◽  
Large Scale ◽  
Socioeconomic Impact ◽  
Small Scale ◽  
Production Methods ◽  
Advantages And Disadvantages ◽  
Key Drivers

Large-scale farming that utilizes industrial methods to intensify production is becoming more significant worldwide. This study explores this phenomenon and sheds light on its consequences. Contingency factors serve as key drivers when determining the advantages and disadvantages of both large-scale and small-scale farming. Significant shifts in agro-production methods have fundamentally altered ownership and production structures in agriculture and had a disastrous impact on the livelihoods of people living in rural areas.

scholarly journals Highly Resolved Rainfall-Runoff Simulation of Retrofitted Green Stormwater Infrastructure at the Micro-Watershed Scale

Land ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 339 ◽  
Author(s):  
Sami Towsif Khan ◽  
Fernando Chapa ◽  
Jochen Hack
Keyword(s):  
High Resolution ◽  
Spatial Data ◽  
Surface Runoff ◽  
Spatial Databases ◽  
Google Earth ◽  
Urban Land Use ◽  
Small Scale ◽  
Runoff Reduction ◽  
Intense Storm ◽  
Green Stormwater Infrastructure

Green Stormwater Infrastructure (GSI), a sustainable engineering design approach for managing urban stormwater runoff, has long been recommended as an alternative to conventional conveyance-based stormwater management strategies to mitigate the adverse impact of sprawling urbanization. Hydrological and hydraulic simulations of small-scale GSI measures in densely urbanized micro watersheds require high-resolution spatial databases of urban land use, stormwater structures, and topography. This study presents a highly resolved Storm Water Management Model developed under considerable spatial data constraints. It evaluates the cumulative effect of the implementation of dispersed, retrofitted, small-scale GSI measures in a heavily urbanized micro watershed of Costa Rica. Our methodology includes a high-resolution digital elevation model based on Google Earth information, the accuracy of which was sufficient to determine flow patterns and slopes, as well as to approximate the underground stormwater structures. The model produced satisfactory results in event-based calibration and validation, which ensured the reliability of the data collection procedure. Simulating the implementation of GSI shows that dispersed, retrofitted, small-scale measures could significantly reduce impermeable surface runoff (peak runoff reduction up to 40%) during frequent, less intense storm events and delay peak surface runoff by 5–10 min. The presented approach can benefit stormwater practitioners and modelers conducting small scale hydrological simulation under spatial data constraint.

scholarly journals Mapping Hydrothermal Zoning Pattern of Porphyry Cu Deposit Using Absorption Feature Parameters Calculated from ASTER Data

2019 ◽  
Vol 11 (14) ◽  
pp. 1729 ◽  
Author(s):  
Mengjuan Wu ◽  
Kefa Zhou ◽  
Quan Wang ◽  
Jinlin Wang
Keyword(s):  
Thermal Emission ◽  
Porphyry Copper ◽  
Copper Deposit ◽  
Geological Mapping ◽  
Systematic Sampling ◽  
Small Scale ◽  
Absorption Feature ◽  
Porphyry Cu ◽  
Feature Parameters ◽  
Porphyry Cu Deposit

Identifying hydrothermal zoning pattern associated with porphyry copper deposit is important for indicating its economic potential. Traditional approaches like systematic sampling and conventional geological mapping are time-consuming and labor extensive, and with limitations for providing small scale information. Recent developments suggest that remote sensing is a powerful tool for mapping and interpreting the spatial pattern of porphyry Cu deposit. In this study, we integrated in situ spectral measurement taken at the Yudai copper deposit in the Kalatag district, northwestern China, information obtained by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), as well as the spectra of samples (hand-specimen) measured using an Analytical Spectral Device (ASD) FieldSpec4 high-resolution spectrometer in laboratory, to map the hydrothermal zoning pattern of the copper deposit. Results proved that the common statistical approaches, such as relative band depth and Principle Component Analysis (PCA), were unable to identify the pattern accurately. To address the difficulty, we introduced a curve-fitting technique for ASTER shortwave infrared data to simulate Al(OH)-bearing, Fe/Mg(OH)-bearing, and carbonate minerals absorption features, respectively. The results indicate that the absorption feature parameters can effectively locate the ore body inside the research region, suggesting the absorption feature parameters have great potentials to delineate hydrothermal zoning pattern of porphyry Cu deposit. We foresee the method being widely used in the future.

scholarly journals Ore Mineralogy, Trace Element Geochemistry and Geochronological Constraints at the Mollehuaca and San Juan de Chorunga Au-Ag Vein Deposits in the Nazca-Ocoña Metallogenic Belt, Arequipa, Peru

Minerals ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1112
Author(s):  
Jorge Crespo ◽  
Elizabeth Holley ◽  
Katharina Pfaff ◽  
Madeleine Guillen ◽  
Roberto Huamani
Keyword(s):  
Inductively Coupled Plasma ◽  
Geological Mapping ◽  
Small Scale ◽  
Trace Element Geochemistry ◽  
San Juan ◽  
Element Geochemistry ◽  
Gold Mines ◽  
Inductively Coupled ◽  
Metallogenic Belt ◽  
Geochronological Constraints

The Mollehuaca and San Juan de Chorunga deposits are hosted in the poorly explored gold and copper trends of the Nazca-Ocoña metallogenic belt in Arequipa, Perú, which extends from Trujillo (9 °S) to Nazca-Ocoña (14 °S). The aim of this study is to characterize the age, occurrence, and distribution of quartz vein-hosted Au-Ag mineralization and associated trace elements (e.g., Hg, Pb, Cu, Zn, and Bi) in these deposits. Here, we present geological mapping, geochemical whole rock inductively coupled plasma (ICP)-MS data of the veins, petrographic observations, backscattered electron images, quantitative SEM-based automated mineralogy, and electron microprobe analyses (EMPA). Despite the fact that there are numerous small-scale gold mines in the Nazca-Ocoña metallogenic belt, there have been few studies that document the origin and geological evolution of these deposits or the implications for decision-making in exploration, metallurgical processing, and environmental management. In this research, we document the host rock age of the mineralized veins (129.2 ± 1.0 Ma; U-Pb in zircon), the mineralization age (95.86 ± 0.05 Ma; 40Ar/39Ar in secondary biotite), the occurrence and distribution of Au-Ag in the veins, the mineral zonation present in the vein system, and the zircon geochemistry, in order to provide tools for natural resource management in the metallogenic belt.

scholarly journals Industrial Recycling of Lithium-Ion Batteries—A Critical Review of Metallurgical Process Routes

Metals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1107 ◽  
Author(s):  
Lisa Brückner ◽  
Julia Frank ◽  
Tobias Elwert
Keyword(s):  
Lithium Ion Batteries ◽  
Economic Value ◽  
Lithium Ion ◽  
Current Status ◽  
Small Scale ◽  
Metallurgical Process ◽  
Advantages And Disadvantages ◽  
Metallurgical Processing ◽  
Pre Treatment ◽  
High Yields

Research for the recycling of lithium-ion batteries (LIBs) started about 15 years ago. In recent years, several processes have been realized in small-scale industrial plants in Europe, which can be classified into two major process routes. The first one combines pyrometallurgy with subsequent hydrometallurgy, while the second one combines mechanical processing, often after thermal pre-treatment, with metallurgical processing. Both process routes have a series of advantages and disadvantages with respect to legislative and health, safety and environmental requirements, possible recovery rates of the components, process robustness, and economic factors. This review critically discusses the current status of development, focusing on the metallurgical processing of LIB modules and cells. Although the main metallurgical process routes are defined, some issues remain unsolved. Most process routes achieve high yields for the valuable metals cobalt, copper, and nickel. In comparison, lithium is only recovered in few processes and with a lower yield, albeit a high economic value. The recovery of the low value components graphite, manganese, and electrolyte solvents is technically feasible but economically challenging. The handling of organic and halogenic components causes technical difficulties and high costs in all process routes. Therefore, further improvements need to be achieved to close the LIB loop before high amounts of LIB scrap return.

Information Extraction and Metallogenic Prediction of Qiangduo Area in Tibet Based on Multi-Source Remote Sensing Data

2014 ◽  
Vol 962-965 ◽  
pp. 127-131
Author(s):  
Xin Xing Liu
Keyword(s):  
Remote Sensing ◽  
Remote Sensing Data ◽  
Geological Mapping ◽  
Advanced Technology ◽  
Data Types ◽  
Sensing Data ◽  
Advantages And Disadvantages ◽  
Remote Sensing Technology ◽  
Sensing Technology ◽  
Metallogenic Prediction

Remote sensing technology as a kind of new and advanced technology has been playing an important role in geological mapping and prospecting. A single kind of remote sensing data always has both advantages and disadvantages. And with multispectral remote sensing data types increasing, the integrated application of multi-source remote sensing data will be one of the development trend of remote sensing geology. In this paper, comprehensive utilization of multi-source remote sensing data such as ETM+, ASTER, Worldview-II and DEM, lithology and geological structure of Qiangduo area in Tibet were interpreted in different levels and mineralized alteration information also was extracted. Then on the basis of modern metallogenic theory, analyzed the multiple mineralization favorite information, established the remote sensing prediction model, and on the GIS platform, carried out metallogenic prediction of the study area. The field validation shows that the results of the prediction are relatively accurate and remote sensing technology can improve the efficiency of geological work.

Forest certification, state regulation and community empowerment: complementarity in seeking a viable solution to forest degradation in Indonesia?

2019 ◽  
Vol 22 (1) ◽  
pp. 27-47 ◽  
Author(s):  
Shawkat Alam ◽  
Tuti Herawati ◽  
Herman Hidayat ◽  
Stephen Wyatt
Keyword(s):  
Forest Management ◽  
Sustainable Forest Management ◽  
Political Stability ◽  
Regulatory Reform ◽  
State Intervention ◽  
State Regulation ◽  
Community Empowerment ◽  
Small Scale ◽  
Forest Certification ◽  
Advantages And Disadvantages

For developing countries like Indonesia, the advantages enjoyed by developed countries – of political stability and highly regulated systems of land tenure and ownership – are elusive, leading to a situation in which state intervention in forest governance is met with resistance and faces significant hurdles. Recognizing the challenges facing implementation of Indonesia's current systems of certification, and the failure thus far of government efforts to stem illegal forestry activity, this article examines the influence of certification on sustainable forest management (SFM) in Indonesia. In particular, the question of how certification requirements interact with both the domestic regulatory framework and expectations for community participation and engagement is considered. The article begins by reviewing Indonesian efforts to implement SFM, as well as the basis of certification systems; before examining Indonesian experience with forest certification, drawing both upon previously published studies and field research by the authors. Finally, the article considers complementarity in government, private and community initiatives in SFM and how regulatory reform in support of a more participatory approach could contribute to achieving these goals. The development of the Indonesian voluntary forestry certification process shows that both certification schemes and government regulation provide advantages and disadvantages in improving the sustainability of forest management and in controlling illegal activities. An increased role for communities, small-scale producers and traditional forest users appears important in the Indonesian context, providing additional options and capacity for sustainable forest management.

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