Jan Bastiaens - Academia.edu (original) (raw)

Papers by Jan Bastiaens

EGU General Assembly Conference Abstracts, Apr 1, 2018

한국토양비료학회 학술발표회 초록집, Jun 1, 2014

Geomorphology, Mar 1, 2021

Abstract A series of polygon networks has been discovered on the most recent LiDAR (Light Detecti... more Abstract A series of polygon networks has been discovered on the most recent LiDAR (Light Detection and Ranging) DEM (Digital Elevation Model) of Flanders (Belgium) available in a resolution of 1 m2. They are located in the sandy Campine area (northern Belgium) and resemble thermal contraction crack polygon networks from present-day permafrost regions. Different network types were observed, ranging from orthogonal to hexagonal and various combinations of these. The inter-polygon troughs are typically several decimeters deep and up to several meters wide. The average polygon size is ca. 3000 m2, which is equivalent to a diameter of ca. 60 m if the polygon shape is approximated with a perfect circle, or a side of ca. 55 m length if it were to be approximated by a perfect square. The average size is (much) larger than any of the studied present-day analogues, and also larger than fossil networks in the western part of Flanders, Poland and France. In contrast to the Campine polygons presented here, the fossil analogues in these countries were detected using satellite imagery and orthophotos, which may partially explain the observed size differences. The morphometric analysis of the Campine networks shows relationships between polygon type and local geomorphological position as orthogonal networks seem to have a preference to develop near shallow valley slopes. In addition, GPR (Ground Penetrating Radar) radargrams were acquired across polygon boundaries to investigate subsoil disturbances related to the former position of ice wedges or sand wedges. However, the evidence is not unequivocal due to the low dielectric contrast between the host and wedge material. It is not clear yet whether smaller 2nd and 3rd order cracks did develop but without leaving a topographical imprint. The observed polygon networks in the Campine area are interpreted as first-order networks that developed during a time span of several thousands of years, up to 10 kyr at most, in a former Late Weichselian permafrost climate.

Handelingen der maatschappij voor geschiedenis en oudheidkunde te Gent, 2006

Handelingen der maatschappij voor geschiedenis en oudheidkunde te Gent, 1995

Van 1984 tot en met 1992 werden door het Seminarie voor Archeologie van de Rijksuniversiteit Gent... more Van 1984 tot en met 1992 werden door het Seminarie voor Archeologie van de Rijksuniversiteit Gent opgravingen verricht van het Romeinse kamp van Maldegem-Vake (Oost-Vlaanderen, België). De leiding berustte bij Prof. Dr. H. Thoen 3. Van in het begin werd er systematisch bemonsterd voor archeobotanisch onderzoek. Het onderzoek van de botanische macroresten, en dan met name zaden en vruchten, vatte aan in 1993. Sinds 1 oktober 1994 is dit onderzoek geïntegreerd in een ruimere context: "Studie van de romanisering in Vlaanderen aan de hand van archeobotanisch onderzoek" (mandaat van aspirant van het N.F.W.O). 2 Situering De site van het Romeinse kamp van Maldegem-Vake is gelegen in het gehucht Vake van de gemeente Maldegem (Oost-Vlaanderen, België), 2 km ten noordwesten van het centrum van Maldegem, 14 km ten oosten van Brugge (West-Vlaanderen, België) en 6 km ten zuiden van Aardenburg (Zeeland, Nederland). De geografische coördinaten van de site zijn 51 °13'22" N en 3°15'38" 0. Dit komt overeen met x = 84200 en y = 212920 in Belgische Lambertcoördinaten (Thoen en Vandermoere 1985). Het Romeinse kamp van Maldegem-Vake ligt in het relatief vlakke gebied van

&lt;p&gt;With one third of the world's fertile topsoil lost and most of t... more &lt;p&gt;With one third of the world's fertile topsoil lost and most of the rest in a poor condition, there is no doubt that soils need more attention in society in general and in education in particular. Nevertheless, connecting people to soils in a current context of urbanisation and digitalisation is not straigtforward. We think that one of the hurdles in improving this soil connectivity is getting rid of the 'big brown blob': soils are often depicted as a dumbed-down, generic, boring brown structures even in educational graphics or pamflets. Obviously, it's difficult to get people exited about that.&amp;#160;&lt;/p&gt;&lt;p&gt;Only a very limited amount of people, often only in higher education, gets to experience what soils are actually like. In collaboration with educational experts, artists and landscape and heritage experts, we started a series of immersive educational and art projects. The concept was to spike people's interest by showing them the beauty and viariablilty of soils in landscapes, muze on their peculiarities and reflect on how the world above is influenced by what is hidden beneath. Soil monoliths, as life-like representations of actual landscapes, were combined to art installations indoors as well as in the field and coupled to the work of graphical and word artists, and how they percieve the soil. We also created digital below-ground 'tours' of how soils manifest themselves in the stories of our landscapes. In particular, our installations featuring Podzols and greensands were very popular, as they provide a quite dramatic and visually appealing spectacle that most people would not expect to find in soils.&amp;#160;&lt;/p&gt;&lt;p&gt;By immersing people into a world they usually have no access to, our goal was to evoke intrinsic interest and wonder by including them in the educational process, i.e. giving them the opportunity to do their own discoveries rather than talking to them about something they would have very little instrinsic affection to. In this contribution, we will highlight the main techniques we used and lessons we learned from the persons that contributed to visited our work.&amp;#160;&lt;/p&gt;

Handleidingen agentschap Onroerend Erfgoed

Handleiding voor het inventariseren van landschapselementen REEKS Handleidingen agentschap Onroer... more Handleiding voor het inventariseren van landschapselementen REEKS Handleidingen agentschap Onroerend Erfgoed nr. 30

Environmental Archaeology

Onderzoeksrapporten agentschap Onroerend Erfgoed

Elewijt, Kastanjedreef 2018 pagina 2 van 133 COLOFON TITEL Elewijt, Kastanjedreef. De noordwestel... more Elewijt, Kastanjedreef 2018 pagina 2 van 133 COLOFON TITEL Elewijt, Kastanjedreef. De noordwestelijke rand van de vicus. Eindverslag van een toevalsvondst. REEKS Onderzoeksrapporten agentschap Onroerend Erfgoed nr. 218

Landscape Archaeology Conference, Aug 1, 2016

Large-scale archaeological and palaeoenvironmental research in the Liereman Landscape (Landschap ... more Large-scale archaeological and palaeoenvironmental research in the Liereman Landscape (Landschap De Liereman) in the northern Campine (Belgium) revealed a very extensive and well-preserved prehistoric site complex at Arendonk Korhaan (fig. ). Remains include Final Palaeolithic scatters associated with the Usselo horizon buried below aeolian sand overlain by podzol soil containing Mesolithic assemblages. The Korhaan site complex is a rare example in this coversand area where Final Palaeolithic and Mesolithic are separated stratigraphically. Combined with an intact toposequence (the Usselo horizon grading into peat deposits), this site offers unique potential for ongoing archaeological, geomorphological and palaeoecological research on Late Glacial and Early Holocene settlement systems. This paper outlines the discovery of the complex, presents some primary research results and discusses land use patterns of hunter-gatherers recurrently returning to persistent places across the Pleistocene-Holocene transition.

Deforce, Koen, and Jan Bastiaens. 2004. “Archeobotanisch Onderzoek Van Een Romeinse Potstal Van D... more Deforce, Koen, and Jan Bastiaens. 2004. “Archeobotanisch Onderzoek Van Een Romeinse Potstal Van De Site St-Gillis-Waas/Kluizenmolen.” Vobov-info (56): 4–11. ... Deforce, K., &amp; Bastiaens, J. (2004). Archeobotanisch onderzoek van een romeinse potstal van de site St-Gillis-Waas/Kluizenmolen. VOBOV-INFO, (56), 4–11. ... Deforce K, Bastiaens J. Archeobotanisch onderzoek van een romeinse potstal van de site St-Gillis-Waas/Kluizenmolen. VOBOV-INFO. Belsele: Verbond voor Oudheidkundig Bodemonderzoek in ...

EGU General Assembly Conference Abstracts, Apr 1, 2018

한국토양비료학회 학술발표회 초록집, Jun 1, 2014

Geomorphology, Mar 1, 2021

Handelingen der maatschappij voor geschiedenis en oudheidkunde te Gent, 2006

Handelingen der maatschappij voor geschiedenis en oudheidkunde te Gent, 1995

Handleidingen agentschap Onroerend Erfgoed

Environmental Archaeology

Onderzoeksrapporten agentschap Onroerend Erfgoed

Landscape Archaeology Conference, Aug 1, 2016

This report describes the results of the excavation of a middle mesolithic to middle neolithic si... more This report describes the results of the excavation of a middle mesolithic to middle neolithic site in alluvial context in the lower Scheldt Basin (Belgium). Waterlogged conditions and the covering of the site with peat and clay resulted in good preservation conditions of the site, including organic artefacts and palaeo- ecological proxies. This allowed the identification of several occupation episodes between ca. 5000 cal BC and ca. 3600 cal BC, illustrating the neolithisation process in the lower Scheldt Basin.