International Journal of Speleology (IJS) | Vol 47 | Iss 1

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Volume 47, Issue 1 (2018)

Cover and Front Matter

Table of Contents

Full Issue 47(1)

Articles

Geothermal flux and phreatic speleogenesis in gypsum, halite, and quartzite rocks
Giovanni Badino

Geothermal heating of subterranean water
Temperature dependence of rocks solubilitiy
Geothermal dissolution of rocks
Safety of artificial subterranean waste storages

Cave monitoring in the Béke and Baradla caves (Northeastern Hungary): implications for the conditions for the formation cave carbonates
György Czuppon, Attila Demény, Szabolcs Leél-Őssy, Mihály Óvari, Mihály Molnár, József Stieber, Klaudia Kiss, Krisztina Kármán, Gergely Surányi, and László Haszpra

Three years monitoring in Béke and Baradla Caves
Stable isotope and trace element measurements of drip waters and fresh calcite precipitates
Link between the chemistry of the drip water and the hydrological conditions
Sign of prior calcite precipitation
Link between the stable isotope composition of fresh calcite precipitates and the hydrological conditions

Underground dinosaur tracksite inside a karst of southern France: Early Jurassic tridactyl traces from the Dolomitic Formation of the Malaval Cave (Lozère)
Jean-David Moreau, Vincent Trincal, Daniel André, Louis Baret, Alain Jacquet, and Michel Wienin

Hettangian tridactyl dinosaur tracks were discovered in the Malaval Cave (southern France)
The tracksite was studied using photogrammetric imaging technique
More than 26 footprints of theropods were identified
The depositional environment varied from subtidal to intertidal/supratidal flat marsh
This work highlights the great interest to heighten palaeoichnological prospections in karsts

Assessing preservation priorities of caves and karst areas using the frequency of endemic cave-dwelling species
Eugen Nitzu, Marius Vlaicu, Andrei Giurginca, Ioana N. Meleg, Ionut Popa, Augustin Nae, and Ştefan Baba

Endemic cave-dwelling species rarity is used to compute an original endemicity index of caves
Both stygobitic and troglobitic endemites were taken into consideration in a holistic concept
A formula is provided for an objective weighting of the frequency steps
A map of hotspots of 'biospeological conservation concern' was generated using the EI
The developed EI is useful in assessing karst areas vulnerability

Phosphate speleothems in caves developed in iron ores and laterites of the Carajás Mineral Province (Brazil) and a new occurrence of spheniscidite
Alan R.L. Albuquerque, Rômulo S. Angélica, Daniele F. Gonçalves, and Simone P.A. Paz

Bat guano is a potencial source of phosphorus to phosphate speleothems formation
The guano's geochemical signature is detected by increase of Zn, Ni, and Rb
Metals elements are bioaccumulate in the bat guano
The first occurrence of spheniscidite in cave developed in iron ores and laterites
The unit cell parameters for spheniscidite, obtained using Rietveld refinement, are slightly lower than those of the ICSD-39654 file

The blurred line between photic and aphotic environments: a large Mexican cave with almost no dark zone
Luis M. Mejía-Ortíz, Tanja Pipan, David C. Culver, and Peter Sprouse

Muevelo Rico has almost no dark zone, throwing into relief what constitutes a cave
Light is present in most of the cave, as are reduced daily temperature and humidity cycles
Troglomorphic species and their potential predators occur throughout the cave
The presence of troglomorphic species is best explained by the presence of organic matter in photic zones

Flowstone growth in Gournier River (Vercors, France): a diachronic landscape analysis by 3D modelling and photo draping
Kim Genuite, Yves Perrette, and Stéphane Jaillet

An increase of flowstone deposit was seen in Vercors cave, we intended to quantify it
That increase is associated to global changes, including climate and vegetation
A quantification method has been adapted to the subterranean environment

First assessment on the air CO₂ dynamic in the show caves of tropical karst, Vietnam
Duc A. Trinh, Quan H. Trinh, Angel Fernández-Cortés, David Mattey, and Javier G. Guinea

Ventilation of Vietnamese tropical caves is stronger in winter-dry season
High soil CO₂ input and weak ventilation lead to cave air CO₂ enrichment in summer
Soil moisture fluctuation shows a correlation with variations on cave air CO₂
Streams and large pools of hydrologically-active caves buffer the air CO₂ variations
Visitation may be a cause of high CO₂ during daytime and in show section

Rapid Communication

Caves as observatories for atmospheric thermal tides: an example from Ascunsă Cave, Romania
Virgil Drăgușin, Laura Tîrlă, Nicoleta Cadicheanu, Vasile Ersek, and Ionuț Mirea

First records of S₂ thermal tides in caves
High-precision temperature data logging
12-hour periodicity revealed by spectral analysis of temperature data
No influence on cave atmosphere from rock temperature on semidiurnal scale
Atmospheric thermal tides are transferred to caves via pressure changes