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Main morphotectonic characteristics of Asturias, Spain
Mario Octavio Cotilla Rodríguez,Diego Córdoba Barba,Miguel Herraiz Sarachaga
Geofísica internacional , 2005,
Abstract: Asturias is part of one of the four morphotectonic mesoblocks that make up the Northern macroblock (Number 9) of the Iberian plate. The framework of territorial regionalization was developed on the basis of the methodology of Rantsman (1979) using different geologic-geophysical and geomorphological methods. The territorial units (1 mountain mesoblock, 8 blocks, 208 microblocks and 668 nanoblocks), morphoalignments (quantity/order: 1/2, 1/3, 10/4, 35/5 and 77/6) and morphotectonic knots (quantity/order: 2/3, 11/4, 31/5 and 86/6) can be distinguished in the cartography of Asturias. The number of well defined morphostructures increases, significantly, from west to east. At the block level, a very well defined transverse differentiation of the territorial units and morphoalignments is noticeable. This differentiation is interpreted as an expression of the region’s lithospheric heterogeneity. There is a clear relationship between morphostructures and seismicity, especially with respect to the higher activity found in the blocks adjacent to Oviedo and the northern and eastern regions. The oceanic sector is decidedly seismically active.
Analysis of tectonic-controlled fluvial morphology and sedimentary processes of the western Amazon Basin: an approach using satellite images and digital elevation model
Silva, Clauzionor L.;Morales, Norberto;Crósta, Alvaro P.;Costa, Solange S.;Jiménez-Rueda, Jairo R.;
Anais da Academia Brasileira de Ciências , 2007, DOI: 10.1590/S0001-37652007000400010
Abstract: an investigation of the tectonic controls of the fluvial morphology and sedimentary processes of an area located southwest of manaus in the amazon basin was conducted using orbital remote sensing data. in this region, low topographic gradients represent a major obstacle for morphotectonic analysis using conventional methods. the use of remote sensing data can contribute significantly to overcome this limitation. in this instance, remote sensing data comprised digital elevation model (dem) acquired by the shuttle radar topographic mission (srtm) and landsat thematic mapper images. advanced image processing techniques were employed for enhancing the topographic textures and providing a three-dimensional visualization, hence allowing interpretation of the morphotectonic elements. this led to the recognition of main tectonic compartments and several morphostructural features and landforms related to the neotectonic evolution of this portion of the amazon basin. features such as fault scarps, anomalous drainage patterns, aligned ridges, spurs and valleys, are expressed in the enhanced images as conspicuous lineaments along ne-sw, nw-se, e-w and n-s directions. these features are associated to the geometry of alternated horst and graben structures, the latter filled by recent sedimentary units. morphotectonic interpretation using this approach has proven to be efficient and permitted to recognize new tectonic features that were named asymmetric ariaú graben, rombohedral manacapuru basin and castanho-mamori graben.
Morphotectonic Analysis in the Ghezel Ozan River Basin, NW Iran  [cached]
Vahid Hosseini Toudeshki,Mehran Arian
Journal of Geography and Geology , 2011, DOI: 10.5539/jgg.v3n1p258
Abstract: Morphotectonic analysis by the use of geomorphic indices serves as a tool of recognition in regions with active tectonic deformation. Landforms in active deformation area are created from interaction of tectonic and surficial processes. One of the most important landforms in ground are rivers that are very sensitive to tectonic movements especially uplift and tilting. Thus based on analysis of the rivers and related drainage networks by the use of geomorphic indices we will be able to attain valuable information about tectonic history of the area. In this article, determine of tectonic movements bye the use of geomorphic indices is surveyed in the Ghezel Ozan River basin between 2007 and 2010. After segmentation of the Ghezel Ozan River and preparation of digital elevation model (DEM) amounts of geomorphic indices per segments is separately attained. The attained amounts show that different segments of the Ghezel Ozan River vary from each other regarding the amount of tectonic activity and tectonic movements increase from west to east and also, the amount of tectonic tilting is negligible in a lot of the Ghezel Ozan River segments. This situation is completely in agreement with the trend of the seismicity of the area.
Methodology for planning log stacking using geotechnology and operations research  [PDF]
Mariana Peres de Lima,Luis Marcelo Tavares de Carvalho,Adriana Zanella Martinhago,Luciano Teixeira de Oliveira
CERNE , 2011,
Abstract: In view of the need to improve the planning of timber harvest and transportation, with both activities being the most influential in determining the final cost of timber delivered to the mill yard, this work aims to develop a new methodological proposal using operations research and geotechnology tools in order to determine optimal locations for log stacking and also the amount of timber to be allocated to each selected stack. Analysis was performed using two software applications, geographic information system (GIS) and operations research (OR). GIS spatial analyses were based on layers of the study site, which is a property owned by Votorantim Celulose e Papel, located in the municipality of S o José dos Campos, in order to obtain three variables: degree of difficulty in operating forestry equipment, degree of difficulty in log stacking, and distance between log stacks and existing roadways. To obtain these variables, layers containing information on terrain inclination and existing roadways were combined in another analysis named weighted overlay. Results were then filtered and inserted into an operations research environment for maximization of the timber volume in each selected stack. With results obtained from the geographic information system, 80 potential sites were selected for log stacking. By using operations research, 59 of these sites were ruled out, a 73% reduction in the number of potential sites, with only 21 sites remaining as potentially optimal for log storage. For each of these 21 sites, an optimal amount of timber was determined to be allocated to each one of them.
Climate Characterization of the Machado-Mg Region through Geotechnology Techniques and Tools  [PDF]
Gustavo Souza Rodrigues, Ant?nio Carlos da Silva, Alisson Souza de Oliveira, Luís Roberto Almeida Gabriel Filho, Fernando Ferrari Putti
American Journal of Climate Change (AJCC) , 2018, DOI: 10.4236/ajcc.2018.71007
Abstract: The characteristics of a region and its environmental changes are directly associated with the characteristics of the climate and the changes that occur in it. The importance of the study of the climate of a region is widely known in agriculture, by the size of the impact that the climate has on the productivity and final quality of the products. From the studies of these spatial and temporal changes in climatic and environmental information, excellent results have been obtained in understanding the variability of atmospheric phenomena that occur throughout. The objective of the present work was to perform the climatic characterization of the Machado-MG region, analyzing data collected on the elements of the climate, applying methodologies that allow its spatialization, from geotechnology tools, more precisely, the techniques of interpolation and manipulation of spatial data in the Geographic Information Systems (GIS) environment. For this purpose, it has been used the climatic data obtained from meteorological stations of the National Institute of Meteorology-INMET, located in the state of Minas Gerais, referring to the monthly and annual averages of a historical series of 55 years (1961-2015). The results obtained allowed to characterize the climate of the municipality, which presented an average temperature around 15°C to 25°C and with average rainfall between 100 - 200 mm in the rainiest periods. The relative humidity of the air presents throughout the year values in the average of 60% to 80%. From the spatialization maps of temperature, precipitation and relative humidity of the air, it becomes possible to analyze the spatial behavior of the climatic elements and thus to have the perception of the climate dynamics in the region.
Fluvial systems and their sedimentary models
Dragomir Skabeme
Geologija , 1995,
Abstract: The Slovenian géomorphologie and sedimentologie terminology for fluvial depositional environments is not established yet. Therefore a classification and the proposal for Slovenian names of fluvial sedimentary and erosional forms and influences controlling them are discussed. Attention is given to the problems of recognition of sedimentary environments in sedimentary rocks, and to fluvial sedimentary models.
The Significance of Sedimentary Phosphorus in Estuary-Bay in Studies on Global Change and Regional Response
河口、海湾沉积磷在全球变化区域响应研究中的意义

ZHANG Xiu mei,LIANG Tao,GENG Yuan bo,
张秀梅
,梁涛

地理科学进展 , 2001,
Abstract: The biogeochemical cycle of modern sedimentary phosphorus in ocean continental interaction zone and its relationship with O 2 and CO 2 in the atmosphere are discussed in this paper. From enviromental biogeochemical theory and methodology, the characteristics of variation of sedimentary phosphorus with time, species, and its related elements are summarized. It can trace back to the driving factors that caused past climate and environmental changes. Furthermore, the potential influence of modern sedimentary phosphorus in estuary bay area to global climate change and regional respond is discussed. It shows that the modern sedimentary phosphorus acts as a special role in the study of globle climate change. And it could help to indicate the past climate and environmental change. The study of moedern sedimentary phosphorus will supply scientific information to the creation of the pattern of global change.
The Distribution of Sedimentary Organic Matter and Implication of Its Transfer from Changjiang Estuary to Hangzhou Bay, China  [PDF]
Fanglu Xu, Zhongqiang Ji, Kui Wang, Haiyan Jin, Pei Sun Loh
Open Journal of Marine Science (OJMS) , 2016, DOI: 10.4236/ojms.2016.61010
Abstract: In this study, a comparison was made between the Changjiang Estuary and the Hanghzou Bay, in terms of the sources and diagenesis of the sedimentary organic matter (OM). To achieve this purpose, surface sediments from the estuary and bay were analyzed for lignin-derived phenols, stable carbon isotope and TOC/TN (total organic carbon/total nitrogen) molar ratio. The signal of land-derived OM decreased, and the vanillic acid to vanillin ratio, (Ad/Al)v, increased with increasing distance from the Changjiang Estuary and the Hangzhou Bay. These results corresponded with the contribution of the terrigenous OM from the rivers to the coastal zone, and the predominance ofmarine OM farther offshore, and that the land-derived OM underwent decomposition duringtransport along the estuary and bay. It should be noted that besides the Qiantang River, Hangzhou Bay is also receiving more than half of its materials from Changjiang Estuary, which flows into the Hangzhou Bay at the north, and leaves via the southern part of the bay. This important aspect of the hydrological cycle in Hangzhou Bay corresponded to higher Λ (total lignin in mg/100 mg OC), higher TOC and C/N ratios and more elevated (Ad/Al)v and (Ad/Al)s values in the bay than the Changjiang Estuary, thus, rendering the bay as a site for the accumulation and rapid cycling of terrigenous OM.
MORPHOTECTONIC SETTING OF THE DEVELOPMENT OF DATONG VOLCANO GROUPS IN THE EASTERN PART OF CHINA
中国东部大同火山群发育的构造地貌背景

Li Shude,
李树德

地理学报 , 1988,
Abstract: The Datong volcano groups are one of the important specific landform types in the eastern part of China. The development of volcano groups and the Datong Basin Where the volcano groups are located and controlled by the most striking morphotectonic pattern in the eastern part of China-NNE-trending en echelon right-lateral shear-extensional down-faulted zone, located on the upper-mantle upheaval zone. The volcano groups and lava flows are developed obviously along the NE-trending right-lateral shear-extensional fracture zones and their intersection with NW-trending shear-comprcssional faults, and also continuously affected ty re-activation of faults.
Orogenesis: Cause of Sedimentary Formations  [PDF]
Guy Guy Berthault
Open Journal of Geology (OJG) , 2013, DOI: 10.4236/ojg.2013.32B005
Abstract:

Experiments on stratification discussed here have revealed the mechanical nature of lamination as well as the role of turbulent current as agent of stratification. They challenge Steno’s principle that superposed strata are successive sedimentary layers. They show that relative chronology should not be referred to as “stages” but as “sequences” of series. The rock formation studied by Lalomov shows that the duration of sedimentation could be considerably shorter than indicated by the Geological Time Scale. The latter scale corresponds to large marine transgressions and regressions that can result from the shift of polar axis following such major orogeneses as the Caledonian, Hercynian and Alpine.

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