Article
Geology
Sean T. Murray, John A. Higgins, Chris Holmden, Chaojin Lu, Peter K. Swart
Summary: This study analyzed the Neogene dolomites in the Bahamas using chemical and isotope analysis, revealing different dolomitization mechanisms and highlighting the utility of multiple geochemical proxies in deciphering the diagenetic history of shallow-water carbonate sediments. The findings caution against simple interpretations of stratigraphic variability in these geochemical proxies.
Article
Geosciences, Multidisciplinary
Robin Fentimen, Eline Feenstra, Andres Ruggeberg, Efraim Hall, Valentin Rime, Torsten Vennemann, Irka Hajdas, Antonietta Rosso, David Van Rooij, Thierry Adatte, Hendrik Vogel, Norbert Frank, Anneleen Foubert
Summary: This study provides a detailed reconstruction of cold-water coral mound build-up within the East Melilla Coral Province (southeastern Alboran Sea) over the last 300 kyr. The investigation reveals that mound build-up occurred during both interglacial and glacial periods, with average aggradation rates ranging between 1 and 10 cm kyr(-1). Coral growth during this time period was influenced by stressful environmental conditions.
CLIMATE OF THE PAST
(2022)
Article
Biology
Leila Chapron, Pierre E. Galand, Audrey M. Pruski, Erwan Peru, Gilles Vetion, Sarah Robin, Franck Lartaud
Summary: The study found that cold-water corals show changes in their microbiome, lower energy reserves, and decreased skeletal growth at warmer temperatures, while both species quickly lose their specific bacterial signature and experience reduced physiological activity followed by death at extreme temperatures. In addition, the corals' negative response to colder temperatures suggests they are living close to their thermal optimum in the Mediterranean Sea. The species-specific response to temperature change highlights the potential dramatic impact of global warming on deep-sea reef-builders and associated biodiversity.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Biodiversity Conservation
Lindsay Beazley, Ellen Kenchington, Michelle Korabik, Derek Fenton, Marty King
Summary: The discovery of a cold-water coral reef on the southeast edge of the Scotian Shelf in Canada in 2003 led to the establishment of the Lophelia Coral Conservation Area (LCCA) in 2004 to prevent further damage. Through the analysis of benthic images, it was found that the LCCA has been effective in facilitating the recovery of benthic communities, with an increase in epibenthic megafaunal species density and abundance within its boundaries. Monitoring of the reef structure every 7-10 years is recommended to evaluate the settlement and growth of deep-water corals.
GLOBAL ECOLOGY AND CONSERVATION
(2021)
Article
Multidisciplinary Sciences
Daniel Langenkaemper, Aksel Alstad Mogstad, Ingrid Myrnes Hansen, Thierry Baussant, Oystein Bergsagel, Ingunn Nilssen, Tone Karin Frost, Tim Wilhelm Nattkemper
Summary: Hyperspectral imaging (HSI) is a promising technology for environmental monitoring, but its high dimensionality and complexity make the analysis challenging. This study investigated the impact of different stressor exposure patterns on the spectrum of cold water coral through laboratory experiments. A new software tool called HypIX was developed to explore the relationships between spectral signatures and experimental parameters in hyperspectral datasets. The results showed that corals exposed to particles had a larger change rate in spectrum, and the responses varied among coral samples, indicating individual tolerance levels. The proposed HypIX workflows can provide reproducible HSI analysis results.
Article
Geochemistry & Geophysics
Camila Areias, Catia Fernandes Barbosa, Anna Paula Soares Cruz, Judith A. McKenzie, Daniel Ariztegui, Timothy Eglinton, Negar Haghipour, Crisogono Vasconcelos, Monica Sanchez-Roman
Summary: Lipid-biomarkers have been used to reconstruct environmental changes in lacustrine systems and it is found that sediment characteristics are closely related to climate change, sea level change, and coastal upwelling phenomena.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Multidisciplinary Sciences
Beatriz Vinha, Sergio Rossi, Andrea Gori, Ulrike Hanz, Antonio Pennetta, Giuseppe E. De Benedetto, Furu Mienis, Veerle A. I. Huvenne, Dierk Hebbeln, Claudia Wienberg, Juergen Titschack, Andre Freiwald, Stefano Piraino, Covadonga Orejas
Summary: Despite hypoxic conditions, cold-water coral reefs in the Angolan margin rely on an intermediate food source, possibly zooplankton.
SCIENTIFIC REPORTS
(2023)
Article
Limnology
Janina Vanessa Buescher, Armin Uwe Form, Max Wisshak, Rainer Kiko, Ulf Riebesell
Summary: The physiological sensitivity of cold-water corals to ocean change, particularly the impacts of ocean acidification and warming on dead coral framework, is poorly understood. This laboratory experiment investigated the effects of temperature and pCO(2) levels on the survival, growth, respiration, and degradation of cold-water coral. The results showed that warming promoted calcification while increasing pCO(2) led to decreased calcification and enhanced dissolution. Acidification initially mitigated the negative effects of warming on growth but at higher acidification levels, dissolution prevailed. Respiration rates increased with warming but were slightly suppressed by acidification. The study also found that acidification accelerated the degradation of dead coral framework. These findings suggest that long-term impacts beyond the projected levels of this century will lead to increased mortality and compromise the structural integrity of cold-water coral reefs.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Geochemistry & Geophysics
Fernando Gazquez, David A. Hodell
Summary: Early investigations on stable isotopes of gypsum hydration water suggested that its isotopic composition could be altered soon after precipitation. This study investigates the long-term stability of gypsum hydration water in contact with solution at different temperatures and grain sizes. The results show that at low temperature, the isotopic composition of gypsum hydration water remains stable over time, while at high temperature and with fine-grained gypsum crystals, the isotopic composition continues to change.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Environmental Sciences
Vilhelm Fagerstrom, Goran Brostrom, Ann Larsson
Summary: The study reveals that pre-competent L. pertusa larvae exhibit upward swimming behavior, aiding in their drift near the surface in strong currents. However, their swimming speed decreases in the presence of turbulence, particularly near ocean boundaries. This new insight enhances understanding of the species' potential for long-distance dispersal and population connectivity.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Elisa Malinverno, Giulia Bosio, Anna Gioncada, Raffaella Cimo, Sergio Ando, Luca Mariani, Giovanni Coletti, Chiara Boschi, Karen Gariboldi, Lucia Galimberti, Giovanni Bianucci, Mario Urbina, Claudio Di Celma
Summary: A unique sedimentary layer containing continuous dolomite layers and well-preserved marine vertebrates has been discovered in the Ica Desert along the Peruvian coast. The study suggests that the dolomite precipitation is associated with low-temperature early diagenesis, which may occur in upwelling settings. This discovery provides insights into the abundance and exceptional preservation of marine vertebrates in this region.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Multidisciplinary Sciences
Thomas Heran, Juergen Laudien, Rhian G. Waller, Verena Haussermann, Guenter Forsterra, Humberto E. Gonzalez, Claudio Richter
Summary: Little is known about the biology of cold-water corals, but through a three-year aquarium experiment, researchers described the reproductive mode, larval release periodicity, and early life stages of the solitary scleractinian coral Caryophyllia (Caryophyllia) huinayensis. The study found that C. huinayensis is a brooder that releases planula larvae throughout the year, and the larvae undergo metamorphosis and develop tentacles after settling.
SCIENTIFIC REPORTS
(2023)
Article
Biology
Kristina K. Beck, Gertraud M. Schmidt-Grieb, Jurgen Laudien, Guenter Foersterra, Verena Haeussermann, Humberto E. Gonzalez, Juan Pablo Espinoza, Claudio Richter, Marlene Wall
Summary: The cold-water coral Desmophyllum dianthus in the Comau Fjord of Chile benefits from stable environmental conditions and shows high adaptability to new environments. Additionally, there is an inverse relationship between coral fitness and environmental variability.
COMMUNICATIONS BIOLOGY
(2022)
Article
Multidisciplinary Sciences
Guillem Corbera, Claudio Lo Iacono, Gonzalo Simarro, Jordi Grinyo, Stefano Ambroso, Veerle A. Huvenne, Furu Mienis, Marina Carreiro-Silva, Ines Martins, Beatriz Mano, Covadonga Orejas, Ann Larsson, Sebastian Hennige, Andrea Gori
Summary: Despite being biodiversity hotspots, there is a lack of quantitative experimental studies on the main processes driving the morphological development of cold-water coral reefs. In this study, a flume experiment was conducted to investigate the effects of unidirectional flow on the growth and physiological condition of Lophelia pertusa. The results showed that the presence of coral framework influenced water flow dynamics and significantly affected coral growth and stress-related enzyme expression. Further experiments are needed to fully understand how variations in water hydrodynamics impact particle encounter and ion intake rates by coral nubbins located in different parts of a reef.
SCIENTIFIC REPORTS
(2022)
Article
Marine & Freshwater Biology
Giovanni Sanna, Janina V. V. Buescher, Andre Freiwald
Summary: This study compares the structural differences between cold-water corals and offshore corals using 3D scanning technology and finds that cold-water corals have higher volume compactness and surface complexity. The study also reveals that the structure of cold-water corals is influenced by current speed, while surface complexity is not significantly affected by current speed.
Article
Geology
Thomas Vandorpe, Stanislas Delivet, Dominique Blamart, Claudia Wienberg, Frank Bassinot, Furu Mienis, Jan-Berend W. Stuut, David Van Rooij
Summary: This study combines various measurements to decipher past oceanographic conditions based on a piston core recovered from the Pen Duick drift. The data suggests that the Azores Front and Antarctic Intermediate Water play significant roles in the palaeoclimatology of the region. The study also reveals that drift formation is influenced not only by bottom currents and internal tides, but also by sediment supply. Additionally, periods characterized by increased aeolian dust supply and higher bottom currents coincide with prolific cold-water coral growth and mound formation.
DEPOSITIONAL RECORD
(2023)
Article
Nanoscience & Nanotechnology
Robin Depraetere, Wim De Waele, Margo Cauwels, Tom Depover, Kim Verbeken, Matthieu Boone, Stijn Hertele
Summary: An experimental study was conducted to investigate the plastic anisotropy and ductile fracture behavior of API 5L X70 pipeline steel with and without hydrogen charging. The presence of hydrogen was found to accelerate ductile damage development and fracture, especially under higher stress triaxiality. These results are important for the development of numerical models to describe hydrogen embrittlement in high-strength low-alloy steel.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Geosciences, Multidisciplinary
Robin Fentimen, Eline J. Feenstra, Andres Ruggeberg, Efraim Hall, Antonietta Rosso, Irka Hajdas, David Jaramillo-Vogel, Bernard Grobety, Thierry Adatte, David Van Rooij, Norbert Frank, Anneleen Foubert
Summary: This study investigates the process of mound build-up in a cold-water coral mound system by comparing multiple core samples taken from different locations. The results show that the timing and rate of mound formation vary under cold conditions, possibly due to environmental factors.
Article
Construction & Building Technology
B. Lubelli, I. Rorig-Daalgard, A. M. Aguilar, M. Askrabic, K. Beck, C. Blauer, V. Cnudde, A. M. D'Altri, H. Derluyn, J. Desarnaud, T. Diaz Goncalves, R. Flatt, E. Franzoni, S. Godts, D. Gulotta, R. van Hees, I. Ioannou, A. Kamat, T. De Kock, B. Menendez, S. de Miranda, C. Nunes, E. Sassoni, N. Shahidzadeh, H. Siedel, Z. Slizkova, M. Stefanidou, M. Theodoridou, R. Veiga, V. Verges-Belmin
Summary: This recommendation presents a laboratory method to test the durability of natural stone and fired-clay brick units against salt crystallization. The method replicates salt damage caused by capillary transport and evaporation and considers two stages in the test: accumulation and propagation. Two types of salt, sodium chloride and sodium sulphate, were tested separately. The procedure includes visual observations, photography, and measurement of material loss, and has been preliminarily validated in round robin tests.
MATERIALS AND STRUCTURES
(2023)
Article
Geology
David Jaramillo-Vogel, Juan Carlos Braga, Haileyesus Alemu Negga, Torsten Vennemann, Eva De Boever, Jean -Charles Schaegis, Valentin Rime, Balemwal Atnafu, Tesfaye Kidane, Anneleen Foubert
Summary: Fibrous aragonite crusts in the Danakil Depression underwent destructive diagenesis, resulting in secondary textures that mimic micritic and grumous (peloidal and clotted) textures associated with sparry microfabrics. The process involved the dissolution of aragonite crystals and subsequent filling of porosity with calcite. Stable C- and O-isotope compositions indicate the influence of meteoric and evaporative fluids. These findings challenge the interpretation of certain textures as primary microbial precipitates in ancient microbialites, suggesting they may be diagenetic products instead, although microbial processes and/or organic matter degradation may have been involved in the diagenetic process.
SEDIMENTARY GEOLOGY
(2023)
Article
Geology
Flor Vermassen, Maarten Van Daele, Nore Praet, Veerle Cnudde, Catherine Kissel, Flavio S. S. Anselmetti
Summary: This study investigates the sediment deposition after the 1601 earthquake in Lake Lucerne, Switzerland. It reveals that slope failures triggered mass flows and turbidity currents, forming mass-transport deposits and a megaturbidite. The research findings are important for the recognition and interpretation of earthquake-induced megaturbidites in other lake records or isolated basins.
Article
Urology & Nephrology
Raisa Thielemans, Floris Vanommeslaeghe, Ivan Josipovic, Filip De Somer, Katrien Devreese, Matthieu Boone, Wim Van Biesen, Sunny Eloot
Summary: During extended (nocturnal) hemodialysis, the dose of LMWH can be given as a single injection or divided over different time points. This study investigated whether a single injection of LMWH is sufficient to maintain dialyzer fiber patency, and whether anti-Xa accurately predicts fiber blocking. The results showed that there is no need to administer enoxaparin over two injections for ENHD up to 8 hours, and the usefulness of anti-Xa to predict fiber patency can be questioned.
CLINICAL KIDNEY JOURNAL
(2023)
Review
Chemistry, Medicinal
Jaianth Vijayakumar, Niloofar Moazami Goudarzi, Guy Eeckhaut, Koen Schrijnemakers, Veerle Cnudde, Matthieu N. Boone
Summary: This article reviews the recent developments in high-resolution X-ray microtomography and its application towards different tablet characterizations, highlighting its indispensability in the pharmaceutical industry.
Article
Geochemistry & Geophysics
Valeriya Brovchenko, Margarita Merkulova, Jonathan Sittner, Vladimir Shilovskih, Camelia Borca, Thomas Huthwelker, Sergey F. Sluzhenikin, Veerle Cnudde
Summary: This study provides the first evidence for the incorporation of palladium into the structure of pentlandite from Norilsk ores through the use of various analytical techniques. The presence of divalent palladium in the lattice of pentlandite suggests a substitution of nickel by palladium. The combination of methods used in this study demonstrates the potential of these techniques for understanding noble metal incorporation into ore minerals.
AMERICAN MINERALOGIST
(2023)
Article
Construction & Building Technology
Manu K. Mohan, A. V. Rahul, Jeroen F. Van Stappen, Veerle Cnudde, Geert De Schutter, Kim Van Tittelboom
Summary: This study investigates the porosity and pore structure of 3D printed concrete elements using mercury intrusion porosimetry and X-ray micro-computed tomography. The results show that the interlayer region contains larger and interconnected pores with low tortuosity, which can enhance ion transport. The study compares two different cement systems and finds that the calcium sulfoaluminate-limestone blend has higher pore complexity and tortuosity. X-ray micro-computed tomography is able to characterize both open and closed pores in the printed sample at high resolution. This study provides insights into ion transport and durability performance of printed concrete elements.
CEMENT & CONCRETE COMPOSITES
(2023)
Article
Construction & Building Technology
Xiaolin Chen, Tim De Kock, Veerle Cnudde, Nathan Van Den Bossche
Summary: Water repellents are commonly used on the outer surfaces of buildings to make them more hydrophobic. However, there is limited research on their efficiency under practical conditions. This study examines the hydrophobic efficiency of a siloxane-based water repellent on different materials and investigates the effects of material characteristics and application conditions on its performance. The results show that spray-treated samples have comparable hydrophobic efficiency to capillary absorbed samples, and temperature and humidity have little impact on the repellent's efficiency.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Chemistry, Analytical
Jose Roberto Tenorio Filho, Jasper Goethals, Reza Aminzadeh, Yawar Abbas, Dulce Elizabeth Valdez Madrid, Veerle Cnudde, Gunter Vermeeren, David Plets, Stijn Matthys
Summary: This paper introduces an innovative automated and wireless system for continuous monitoring of concrete structures. By using embedded electrical resistivity sensors and wireless data transmission, real-time data collection becomes possible. The dielectric properties of concrete and the effects of hardware devices on concrete properties and data transmission were investigated through experiments.
Article
Multidisciplinary Sciences
Sebastiaan Godts, Scott Allan Orr, Michael Steiger, Amelie Stahlbuhk, Tim De Kock, Julie Desarnaud, Hilde De Clercq, Veerle Cnudde
Summary: This study analyzed several thousand realistic salt mixtures found in weathered stone using thermodynamic calculations and identified two common mixture types and their behavior. The critical relative humidity points of the most frequently occurring 14 salts were discussed. These findings have implications for understanding salt weathering processes and designing experimental stone weathering research.
SCIENTIFIC REPORTS
(2023)
Article
Geochemistry & Geophysics
Asim Siddique, Peter Boelens, Fangchao Long, Shengqiang Zhou, Veerle Cnudde, Thomas Leissner
Summary: Magnetic separation plays a crucial role in mineral processing and recycling industries. This study proposes a methodology to comprehensively characterize and classify Waste Electrical and Electronic Equipment (WEEE) slag, aiming to establish the connection between slag properties and the separation process. The methodology involves sieving, classification based on magnetic susceptibility, and mineral liberation analysis. This in-depth analysis provides insights into the separation behavior of different slag phases, contributing to the development of predictive separation models.