Results 21 to 30 of about 861 (183)

The effects of temperature on mechanical properties of rocks [PDF]

International Journal of Mining and Geo-Engineering, 2020
In a natural condition, temperature variations and phase transition of pore water are the two most effective factors on the mechanical properties of rocks.
Jabbar Ashrafi, Lohrasb Faramarzi, Mohammad Darbor, Mostafa Sharifzadeh, Behnam Ferdosi   +4 more
doaj   +1 more source

Evolution of Pleistocene travertine depositional system from terraced slope to fissure-ridge in a mixed travertine-alluvial succession (Jebel El Mida, Gafsa, southern Tunisia)

Geodinamica Acta, 2017
The Quaternary stratigraphic record of Jebel El Mida, composed of continental deposits, is a useful example of concomitant travertines and alluvial deposition in an extensional setting. Travertine deposition occurred in a faulted Pleistocene alluvial fan
Mohsen Henchiri, Walid Ben Ahmed, Andrea Brogi, Mehmet Cihat Alçiçek, Ramdhane Benassi   +4 more
doaj   +1 more source

DEPOSITIONAL ARCHITECTURE, FACIES CHARACTER AND GEOCHEMICAL SIGNATURE OF THE TIVOLI TRAVERTINES (PLEISTOCENE, ACQUE ALBULE BASIN, CENTRAL ITALY)

Rivista Italiana di Paleontologia e Stratigrafia, 2017
Facies character, diagenesis, geochemical signature, porosity, permeability, and geometry of the upper Pleistocene Tivoli travertines were investigated integrating information from six borehole cores, drilled along a 3 km N-S transect, and quarry faces ...
GIOVANNA DELLA PORTA, ANDREA CROCI, MATTIA MARINI, SANDOR KELE   +3 more
doaj   +1 more source

Sarıhıdır manganese mineralization related to travertine, Central Anatolian Volcanic Province, Turkey

Geodinamica Acta, 2020
Sarıhıdır travertines and associated manganese mineralization are located in an area known as the Central Anatolian Volcanic Province (CAVP). The topic of the study, the Sarıhıdır manganese mineralization, was deposited in association with fault zones in
İsmail Koçak
doaj   +1 more source

Hyperspectral identification of travertine state in Huanglong by the PSO-BPNN method

Geocarto International
The Huanglong Scenic and Historic Interest Area in China, a UNESCO World Heritage Site, is famous for its large-scale, diverse, intricately structured, and brightly colored surface travertine landscapes.
Menghui Xu, Weihong Wang, Jialun Cai, Qunwei Dai, Jing Fan, Sicheng Li   +5 more
doaj   +1 more source

Materials Characterization and Technological Aspects of Hellenistic Grey Ware Lamps From Nysa‐Scythopolis (Israel): Evidence Suggesting Local Production?

Archaeometry, EarlyView.
ABSTRACT Grey ware lamp fragments and a production waster from Tell Iẓṭabba (Israel) were analyzed to determine their manufacturing technology and provenance. These were compared with a light brown‐orange reference fabric from the same site.
Dana Ashkenazi, Anat Cohen‐Weinberger, Achim Lichtenberger, Oren Tal   +3 more
wiley   +1 more source

Out in the cold? A review of Early Middle Palaeolithic settlements in northern Central Europe, age data and geological preconditions for site formation and preservation

Boreas, EarlyView.
The characteristics of settlement of Neanderthals in northern Central Europe during the earlier phases of the Middle Palaeolithic (Marine Isotope Stage 8–6) have been a matter of debate for decades, specifically regarding the population dynamics at such latitudes during the coldest phases. In this paper, we review the known archaeological record of the
Gianpiero Di Maida, Jutta Winsemann, Malte Hoffmann, Tobias Lauer, Utz Böhner, Thomas Terberger   +5 more
wiley   +1 more source

Exploration on the surface water leakage mechanism of travertine pools in Salix cupularis shrub area of Huanglong Scenic Spot, Sichuan Province

Shuiwen dizhi gongcheng dizhi
Recently, some travertine landscape groups in Huanglong Scenic Spot have been degraded to varying degrees. Surface water leakage, blackening and desertification have occurred on a large scale in the dense distribution area of Salix cupularis shrub, which
Xinze LIU, Wenhao GAO, Ronglin XU, Dong SUN, Liping JIANG, Shu TANG, Qingzhou REN, Mengyu XU, Shengqiang ZHAI   +8 more
doaj   +1 more source

Spatial and temporal hydrochemical variations of the spring-fed travertine-depositing stream in the Huanglong Ravine, Sichuan, SW China

Acta Carsologica, 2010
Automatic hydrochemical logging and in situ titration com­bined withlaboratory analysis were used to understand the spatial and temporal hydrochemical variations of the spring-fed, travertine-depositing stream in celebrated Huanglong Ravine, Sichuan, SW ...
Haijing Wang, Zaihua Liu, Jinliu Zhang, Hailong Sun, Dejun An, Ruxian Fu, Xiaoping Wang   +6 more
doaj   +1 more source

Improving the Performance of Permeable Concrete Pavement by Replacing Sedimentary Travertine Aggregate [PDF]

Journal of Structural and Construction Engineering, 2019
Increase of impervious surfaces in urban areas, has led to many problems, including flooding roads and streets during rainstorms which could create difficulties for pedestrians and cars.
سعید فرزین, mahsa doostmohamadi, hojat karami, sayed farhad mousavi, Omid Rezayfar   +4 more
doaj   +1 more source