Christian Burlet

Christian Burlet
Royal Belgian Institute of Natural Sciences · Geological Survey of Belgium

About

35
Publications
8,414
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
290
Citations
Additional affiliations
April 2011 - August 2012
University of Lubumbashi
Position
  • Professor (Associate)
May 2007 - present
Royal Belgian Institute of Natural Sciences
Position
  • Geologist

Publications

Publications (35)
Article
Full-text available
Laser-Induced Breakdown Spectroscopy (LIBS) is a fast in-situ analytical technique based on spectroscopic analysis of atomic emission in laser-induced plasmas. Geochemical mapping at macroscopic scale using LIBS was applied to a decimetric Zn-Pb ore sample from east Belgium, which consists of alternating sphalerite and galena bands. A range of elem...
Article
Full-text available
Spring water geochemistry is applied here to evaluate the geothermal potential in Rhenohercynian fold and thrust belt around the deepest borehole in Belgium (Havelange borehole: 5648 m MD). Fifty springs and (few) wells around Havelange borehole were chosen according to a multicriteria approach including the hydrothermal source of “Chaudfontaine” (...
Article
ABSTRACT: The Balkan Peninsula represents one of the most important human pathways into and out of Europe during the Pleistocene. Mishin Kamik cave, located in the karst region of Western Stara Planina, has a rich faunal content and shows promising features indicating a human occupation site with the discovery of potential bone artefacts and an int...
Article
The Balkan Peninsula represents one of the most important human pathways into and out of Europe during the Pleistocene. Mishin Kamik cave, located in the karst region of Western Stara Planina, has a rich faunal content and shows promising features indicating a human occupation site with the discovery of potential bone artefacts and an intriguing ac...
Poster
The Horizon 2020 ROBOMINERS project (Grant No. 820971) is developing a modular robot miner prototype following a bio-inspired design, capable of operating, navigating and performing selective mining in a flooded underground environment. The project has been set up with the long-term strategic objective to facilitate EU access to mineral raw materia...
Poster
Full-text available
A high-precision and low-cost temperature and humidity logging device, called Niphargus and originally intended for environmental monitoring in caves, was developed at the Geological Survey of Belgium (Burlet et al., 2015). The Niphargus is designed as a standalone logger, with data to be retrieved manually whenever needed. This allows for a very s...
Presentation
Full-text available
Societies rely on a secure, responsible and affordable supply of resources to meet their basic needs, in order to live life in a safe and healthy environment. The natural resources from the subsurface, i.e. groundwater, geo-energy and raw materials, represent essential elements in this provision. Safety from catastrophic events, such as those linke...
Article
Full-text available
Natural manganese oxides characterization represents a challenge due to the broad variety of their structures and geochemical compositions along with a frequent poor crystallinity. This characterization requires the ability to conduct both a phase separation and a phase association operation. In this paper, the Raman spectra acquired on a selection...
Article
COMPLEMENTARY DATING RESULTS FROM THE BRUNIQUEL CAVE (TARN-ET-GARONNE, FRANCE). The Bruniquel Cave contains two nearly annular structures, a large one and a smaller one, and four smaller accumulation structures, in total made of 420 pieces of broken stalagmites and located at approximately 300 meters from the entrance. The construction of these str...
Conference Paper
Full-text available
Présentation : La croissance des stalagmites dans les grottes est intimement liée aux conditions climatiques extérieures. Pour cela, l'étude à haute résolution des signaux chimiques contenus dans leur structure interne (lamines) permet de reconstituer les variations des paramètres climatiques et donc de la saisonnalité du climat actuel et passé. Ce...
Conference Paper
Full-text available
Robotic, stand-off microscale characterization of the water content on the surfaces of the Martian moons is a fundamental investigation that enables all types of ISRU and human exploration activities. We have developed an ultracompact laser-induced breakdown spectroscopy (LIBS) instrument that provides rapid, fine-scale chemistry, water abundance,...
Article
Very little is known about Neanderthal cultures(1), particularly early ones. Other than lithic implements and exceptional bone tools(2), very few artefacts have been preserved. While those that do remain include red and black pigments(3) and burial sites(4), these indications of modernity are extremely sparse and few have been precisely dated, thus...
Article
Heterogenite is commonly referred in mineralogy literature as a cobalt oxy-hydroxide CoO(OH). However, detailed analysis of Raman and infrared spectra acquired on particularly well-crystallized natural samples of heterogenite suggests that the mineral can be characterized by a delafossite-type structure, with a general chemical formula ABO2. Indeed...
Article
In this study, Raman microspectroscopy is applied to investigate two manganese oxide phases: lithiophorite [(Al,Li)Mn4+O2(OH)2] and asbolane [(Ni,Co)xMn4+(O,OH)4·nH2O], along with their intermediates (‘asbolane–lithiophorite intermediates’: ALI). These oxides typically incorporate variable concentrations of Co, Ni, Cu and Li. They represent a group...
Article
A temperature logger, named “Niphargus”, was developed at the Geological Survey of Belgium to monitor temperature of local natural processes. It has a sensitivity of the order of a few hundredths of degrees on temperature variability in open air, caves, soils and river environment. The newly developed instrument uses a state-of-the-art band-gap sil...
Conference Paper
A new type of untethered balloon based mapping platform allows affordable remote sensing applications from higher altitudes and with a greater range and payload capacity than common motorized UAV's. The airborne device, called " Stratochip " , is based on a dual helium balloons configuration. At a defined altitude (comprised between 1000 and 30000m...
Conference Paper
Full-text available
A new type of untethered balloon based mapping platform allows affordable remote sensing applications from higher altitudes and with a greater range and payload capacity than common motorized UAV's. The airborne device, called " Stratochip " , is based on a dual helium balloons configuration. At a defined altitude (comprised between 1000 and 30000m...
Article
Full-text available
Despite uncontested evidence for fossils belonging to the early hominin genus Australopithecus in East Africa from at least 4.2 million years ago (Ma), and from Chad by 3.5 Ma, thus far there has been no convincing evidence of Australopithecus, Paranthropus or early Homo from the western (Albertine) branch of the Rift Valley. Here we report the dis...
Conference Paper
The largest cobalt ore reserves are located in DRC, the Democratic Republic of Congo. Most of cobalt is observed as black cobaltic oxide minerals: heterogenite [HCoO 2 ] and asbolane [(Ni,Co)2-xMn(O,OH)4.nH2O] which are hardly differentiable since they exhibit similar macroscopic habit and textures. These minerals are frequently observed in similar...
Data
Full-text available
The study areas are located in the Katanga province to the South Eastern part of the Democratic Republic of Congo (DRC). It focuses on the Kolwezi and Tenke-Fungurume mining centers, located in the vicinity of the Basse-Kando reserve. The 3 study areas have faced large scale human induced the fragmentation of land cover. A combination of ancillary...
Chapter
Full-text available
The largest cobalt ore reserves are located in DRC, the Democratic Republic of Congo. Most of the cobalt is observed as black cobaltic oxide minerals: heterogenite [HCoO2] and asbolane [(Ni,Co)2-xMn(O,OH) 4.nH2O] which are hardly differentiable since they exhibit similar macroscopic habit and textures. These minerals are frequently observed in simi...
Chapter
The largest cobalt ore reserves are located in DRC, the Democratic Republic of Congo. Most of the cobalt is observed as black cobaltic oxide minerals: heterogenite [HCoO2] and asbolane [(Ni,Co)2-xMn(O,OH)4.nH2O] which are hardly differentiable since they exhibit similar macroscopic habit and textures. These minerals are frequently observed in simil...
Article
Natural heterogenite (CoO·OH) samples were studied by Raman microspectroscopy, electronic microprobe and Electronic BackScattered Diffraction (EBSD). Raw samples and polished sections were made from 10 mines covering the Katanga copperbelt (Katanga Province, Democratic Republic of Congo). Four typical Raman responses have been obtained leading to i...
Presentation
GeoRaman 2010. 9th International Conference on Raman Spectroscopy Applied to the Earth Sciences – Sensu Latu. Sydney 28th June – 2nd July, 2010.

Network

Cited By

Projects

Projects (3)
Project
LIBS-SCReeN is devoted to the optimisation and application of Laser-Induced Breakdown Spectroscopy (LIBS) techniques for multiscale detection and characterisation of Critical Raw Materials (CRM), with emphasis on the Belgian zinc-lead (Zn-Pb) deposits. This type of mineralisation is known worldwide to potentially host elements such as germanium (Ge), gallium (Ga) and cadmium (Cd), increasingly demanded for the development of green energy technologies and therefore often with high criticality. Of equal importance is the fact that many elements in these deposits can turn into contaminants for the environment as a result of their mining and beneficiation, including Zn-Pb and others such as arsenic (As) and thallium (Tl). LIBS offers a highly flexible, rapid and reliable measurement technique to enhance our capacity of pollutant-free CRM exploration and exploitation in various environments, including the recycling industry. The techniques also have large potential for remote environmental monitoring of ancient mining and industrial sites.
Project
The Brugeo project receives funding from the Brussels Region and FEDER (European Funding for Regional Development). Its objective is to assess the shallow geothermal potential of the Brussels region through existing geoscientific data, new exploration data and laboratory analyses. Main actors in the geothermal sector of Brussels are partners for the first time (ULB, RBINS-SGB, Brussels Environnement, VUB, CSTC-BBRI). Mapping the geothermal potential of Brussels will stimulate the use of this clean and renewable energy source.
Project
This work will be done in an active quarry where the section was sampled every 5 cm along 20 m across the Neuville and Matagne Formations. To understand clearly the position of the section inside the quarry due to strutural complications, the work is splitted into four steps : 1°) aerial campaign drone survey for 2D, altimetry and cliff profiles 2°) local geological mapping in order to solve the structural complications due to the presence of several faults 3°) a detailed sedimentary analysis using differen proxies (microfacies, magnetic susceptibility and magnetic mineralogy, gamma-ray spectrometry, elementary and isotopes geochemistry) 4°) a biostratigraphic calibration based on conodonts, goniatites and ostracods