Geologica Belgica最新文献_第10页

Shallow marine Rostroconchia (Mollusca) from the latest Devonian (Strunian) and their significance for rostroconch life style and evolution 最新泥盆纪(Strunian)浅海Rostroconchia(软体动物)及其对Rostroconchia生活方式和进化的意义

IF 1.8 4区地球科学

Geologica Belgica Pub Date : 2016-01-01 DOI: 10.20341/gb.2016.002

M. Amler

{"title":"Shallow marine Rostroconchia (Mollusca) from the latest Devonian (Strunian) and their significance for rostroconch life style and evolution","authors":"M. Amler","doi":"10.20341/gb.2016.002","DOIUrl":"https://doi.org/10.20341/gb.2016.002","url":null,"abstract":"1. Introduction The late Famennian sedimentary succession in central and western Europe is characterized by regressive sequences, followed by a short transgressive phase, the TR cycle IIf of Johnson et al. (1986) Strunian in age. This final Devonian pulse in the global sea-level curve is mirrored by respective litho- and biofacies within the siliciclastic shelf areas bounding the southeastern margin of Laurussia. This shelf is represented by a narrow, continuous band of siliciclastic, mixed siliciclastic-calcareous and calcareous sediments, in its central part known as the Condroz Shelf, recorded from southern Ireland across southwest England (north Devon), the northern Ardennes (Belgium) and the Bergisches Land (western Germany) further east to northern Poland. Although variable in specific lithology, the shallow subtidal environment of this shelf area was termed as the Pilton-Velbert Facies, subdivided into several regional subfacies (see e.g. Van Steenwinkel, 1984, 1990; Thorez & Dreesen, 1986; Matyja, 1988; Amler, 1995, 2001; Thorez et al., 2006 for details). Due to the semi-arid to subtropical climate, the southeastern margin of Laurussia offered optimal conditions to establish a highly diverse fauna and flora during the latest Famennian transgressive phase contrasting with the sparse fauna of the nearshore middle and late Famennian. Somewhat variable substrate conditions, however, combined with other ecologically significant parameters, e.g. salinity, bottom currents, o","PeriodicalId":12812,"journal":{"name":"Geologica Belgica","volume":"213 1","pages":"111-120"},"PeriodicalIF":1.8,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76514033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Filling the North Sea Basin: Cenozoic sediment sources and river styles (André Dumont medallist lecture 2014) 填充北海盆地:新生代沉积物来源和河流样式(2014年安德烈·杜蒙获奖讲座)

IF 1.8 4区地球科学

Geologica Belgica Pub Date : 2016-01-01 DOI: 10.20341/GB.2015.017

P. Gibbard, J. Lewin

{"title":"Filling the North Sea Basin: Cenozoic sediment sources and river styles (André Dumont medallist lecture 2014)","authors":"P. Gibbard, J. Lewin","doi":"10.20341/GB.2015.017","DOIUrl":"https://doi.org/10.20341/GB.2015.017","url":null,"abstract":"1. IntroductionThe recognition that the present landscape is a product of the long-term interaction of tectonics and climate is one of the fundamental concepts in historical geoscience. Determining the response of the environment to these changes has been further emphasised by attempts to understand the relationship between rates of tectonic activity and sedimentation or erosion and the interplay of these factors with climate change (e.g. Cloetingh et al., 2005). Moreover, the dynamic linkage of erosion and tectonics results in major impacts on changes of the Earth’s climate through the evolution of major continental topography and vice versa.The form of the Earth’s topography actually results from the net interaction of processes operating at a wide range of time scales. These include long- and short-term tectonic uplift, subsidence, phases of glaciation, and climatic and environmental changes. In northern Europe, these processes, operating simultaneously through the Cenozoic, have left a record of changing conditions that have determined the form of the present landscape. The emphasis recently has been on relatively short-term interactions involving quasi-simultaneous uplift followed shortly by incision, paced alongside Late Pleistocene marine isotope stages, and interacting with climatic fluctuations. Here we take a longer view, that of Cenozoic uplift centres changing in intensity and location, and thus sediment feeds and alluvial styles, feeding into a depositional basin","PeriodicalId":12812,"journal":{"name":"Geologica Belgica","volume":"34 1","pages":"201-217"},"PeriodicalIF":1.8,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84659211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 52

Investigations on the shale oil and gas potential of Westphalian mudstone successions in the Campine Basin, NE Belgium (well KB174): Palaeoenvironmental and palaeogeographical controls 比利时东北部Campine盆地(KB174井)威斯特伐利亚泥岩层序页岩油气潜力研究:古环境古地理控制因素

IF 1.8 4区地球科学

Geologica Belgica Pub Date : 2016-01-01 DOI: 10.20341/GB.2016.009

Wim Vandewijngaerde, K. Piessens, M. Dusar, P. Bertier, B. Krooss, R. Littke, R. Swennen

{"title":"Investigations on the shale oil and gas potential of Westphalian mudstone successions in the Campine Basin, NE Belgium (well KB174): Palaeoenvironmental and palaeogeographical controls","authors":"Wim Vandewijngaerde, K. Piessens, M. Dusar, P. Bertier, B. Krooss, R. Littke, R. Swennen","doi":"10.20341/GB.2016.009","DOIUrl":"https://doi.org/10.20341/GB.2016.009","url":null,"abstract":"1. IntroductionEuropean conventional natural gas reserves are depleting, which results in declining production curves. Consequently EU will become more dependent on the import of oil and gas than it is today (Soderbergh et al., 2009, 2010). On the other hand shale gas has become an important source of natural gas in the United States, feeding the economy, creating domestic jobs and improving the US energy balance. It is expected that the United States will be a net exporter of natural gas by 2030 (Paltsev et al., 2011: Manning, 2014). As a consequence, other countries in the world become interested in the domestic potential of unconventional oil and gas resources. Estimates for Europe’s technically recoverable shale gas volumes range between 3 and 18 trillion m3 (Tcm) (Weijermars, 2013) as compared to estimated world resources of 425 Tcm. The range reflects the inherent uncertainties of the estimates. Exploration is in progress in different EU Member States (e.g. United Kingdom, Poland, Hungary, Romania), or is taken into consideration (e.g. The Netherlands, Austria, Lithuania). These campaigns focused on marine black shales (Gasparik et al., 2012; Sachsenhofer & Koltun, 2012; Uffman et al., 2012; Andrews, 2013), following their success in the United States. The corresponding exploration target in Belgium is constrained to the Namurian aged Chokier Formation (Dusar, 2006; Nyhuis et al., 2014) (Fig. 1). The shale gas potential of the Namurian in the Campine Basin is poorly kno","PeriodicalId":12812,"journal":{"name":"Geologica Belgica","volume":"37 1","pages":"225-235"},"PeriodicalIF":1.8,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74644333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Royseux: a palaeobiodiversity hotspot in the Late Viséan (Carboniferous) of Belgium Royseux:比利时晚vissaman(石炭纪)的一个古生物多样性热点

IF 1.8 4区地球科学

Geologica Belgica Pub Date : 2016-01-01 DOI: 10.20341/GB.2016.003

J. Denayer, M. Aretz, É. Poty, Bernard Mottequin

{"title":"Royseux: a palaeobiodiversity hotspot in the Late Viséan (Carboniferous) of Belgium","authors":"J. Denayer, M. Aretz, É. Poty, Bernard Mottequin","doi":"10.20341/GB.2016.003","DOIUrl":"https://doi.org/10.20341/GB.2016.003","url":null,"abstract":"1. IntroductionQuantifying biodiversity has become a major concern, not only for modern ecology and nature conservation, but also in the fossil record, where the aim is understanding the effects of global changes on the diversity of past life. During the last decade the palaeontological literature dealing with changes in biodiversity over large time scales (periods, stages) has increased significantly. Unfortunately, most papers failed the difficult task of pinpointing the origin of biodiversity: why so many taxa occur(ed) in a particular area at a particular time, why is the diversity not globally distributed, and why do many taxa occur only in localised areas? Biodiversity hotspots are sites or areas with an unusually high numbers of co-occurring species (Myers, 1988). Present-day biodiversity hotspots are defined as biogeographic areas where the density of co-occurring species is extraordinarily high (Marchese, 2015) and/or as areas with a high density of endemic species, most of which are currently suffering habitat loss (Myers et al., 2000). Although this definition is easily applicable to present biodiversity, it is difficult to recognise ancient biodiversity hotspots and few examples have been recorded (e.g. origin and shift of modern marine tropical hotspots of the Indo-Australian Archipelago: Renema et al., 2008; mollusc palaeo-hotspot in the Lutetian of the Paris Basin: Merle, 2008; endemic crinozoan hotspots in the Pennsylvanian of North America: Waters & Webster,","PeriodicalId":12812,"journal":{"name":"Geologica Belgica","volume":"94 1","pages":"7-20"},"PeriodicalIF":1.8,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91300093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Morphological trends and new species of Cyphaspis (Trilobita, Otarioninae) in the Devonian of Morocco, Turkey, Germany and Belgium 摩洛哥、土耳其、德国和比利时泥盆纪三叶虫(三叶虫，Otarioninae)的形态趋势和新种

IF 1.8 4区地球科学

Geologica Belgica Pub Date : 2016-01-01 DOI: 10.20341/GB.2016.008

A. Viersen, D. Holland

{"title":"Morphological trends and new species of Cyphaspis (Trilobita, Otarioninae) in the Devonian of Morocco, Turkey, Germany and Belgium","authors":"A. Viersen, D. Holland","doi":"10.20341/GB.2016.008","DOIUrl":"https://doi.org/10.20341/GB.2016.008","url":null,"abstract":"1. IntroductionThe systematics and ontogeny of the Otarioninae were subjected to the comprehensive studies of Adrain & Chatterton (1994, 1995, 1996) who underlined the importance of heterochrony to the evolution of the nominal Otarionini. The tribe’s chief genera in sheer species numbers are the Siluro-Devonian Cyphaspis Burmeister, 1843 and Otarion Zenker, 1833 which were regarded as sister taxa by Adrain & Chatterton (1994). These workers provided a differential diagnosis chiefly intended to discriminate the basal Silurian members of these genera for it was stated, named differences may not reflect possible convergences during the Devonian. Indeed when considering Devonian members of Cyphaspis –focal point of the present study– the state of knowledge in the early 1990s was far from satisfactory. The majority of species known at that time came from continental Europe and Morocco, many of which had been established on poorly preserved or otherwise inadequately documented material. Subsequent records including some well-preserved complete specimens were provenant from the Ardenno-Rhenish Mountains (e.g. Basse, 1997, 2002, 2006; Basse & Lemke, 1996; van Viersen, 2006; van Viersen & Prescher, 2007), Morocco (Chatterton et al., 2006; van Viersen & Prescher, 2014), Algeria (Khaldi et al., 2016), North America (Adrain & Kloc, 1997) and Australia (Ebach, 2002), among others. The morphological variety is compelling and along with the descriptions of new species arose the challenges o","PeriodicalId":12812,"journal":{"name":"Geologica Belgica","volume":"84 3 1","pages":"251-271"},"PeriodicalIF":1.8,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87661017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

The first record of Early Devonian ammonoids from Belgium and their stratigraphic significance 比利时早泥盆世菊石的首次记录及其地层意义

IF 1.8 4区地球科学

Geologica Belgica Pub Date : 2013-09-27 DOI: 10.5167/UZH-79957

K. Baets, Stijn Goolaerts, U. Jansen, Tim B Rietbergen, C. Klug

引用次数: 10

Using image analysis to estimate quantitatively some microstructural parameters of detrital sediments 利用图像分析定量估计了碎屑沉积物的一些微观结构参数

IF 1.8 4区地球科学

Geologica Belgica Pub Date : 2007-09-24 DOI: 10.20341/gb.2014.016

P. Francus

引用次数: 3

The Holocene depositional history of the IJzer palaeovalley (Western Belgian coastal plain) with reference to the factors controlling the formation of intercalated peat beds IJzer古河谷(比利时西部沿海平原)全新世沉积史与控制夹层泥炭层形成的因素