Results 31 to 40 of about 4,520 (168)

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

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

Journal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon, Jonathan J. Tyler, Patricia S. Gadd, Quan Hua   +3 more
wiley   +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

A palaeoearthquake event and its age revealed by the travertine layer along the Litang fault in the southeastern margin of the Qinghai-Tibetan plateau

Earthquake Research Advances, 2023
The Litang fault (LTF), located in the southeast of the Qinghai-Tibetan Plateau, is known for its high level of present-day seismicity, whereas its Pleistocene activity has been scarcely documented.
Yao Yang, Mingjian Liang, Chao Ma, Jun Li, Hualiang Shen, Fang Du, Song Luo, Shao Liu, Xuelian Rui   +8 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

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