ORCID Profile
0000-0002-3680-3740
Current Organisation
James Cook University
Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the Feedback Form.
Publisher: Wiley
Date: 21-02-2011
Publisher: Informa UK Limited
Date: 27-06-2022
Publisher: MDPI AG
Date: 06-05-2019
DOI: 10.3390/MIN9050279
Abstract: In the Wadi Matulla area, central Sinai, Egypt, an asymmetric baked zone having an average width of 103 m was formed on both sides of a sub-aerial rift-related Oligocene basaltic dyke cross-cutting organic matter-bearing chalky limestone of the Upper Cretaceous Sudr Formation. Advection was the significant heat transfer mechanism. Very narrow metamorphic and metasomatic zones are developed in the country rock at the immediate contact with the dyke. The change in the thermal maturation of organic matter is reflected in the differences in values of the total organic carbon (TOC) within the baked zone. Such differences account for the color variation of the snow-white limestone from shades of brown, in the mature to barren s les, to black, in the totally carbonized overmature metamorphic ones. This study presents for the first time the thermal effect of mafic dykes on some exposed organic matter-bearing rocks in the Gulf of Suez (GOS) region, and turns attention to the local maturation of source rocks in contact with rift-related intrusives at a relatively greater burial depth in the rift basin.
Publisher: Informa UK Limited
Date: 27-07-2023
Publisher: Elsevier BV
Date: 11-2016
Publisher: Elsevier BV
Date: 07-2011
Publisher: Springer Science and Business Media LLC
Date: 29-09-2017
Publisher: Elsevier BV
Date: 02-2018
Publisher: Elsevier BV
Date: 10-2021
Publisher: Informa UK Limited
Date: 14-10-2022
Publisher: Elsevier BV
Date: 12-2017
Publisher: Springer Science and Business Media LLC
Date: 12-2017
Publisher: Elsevier BV
Date: 03-2013
Publisher: Wiley
Date: 21-07-2020
DOI: 10.1111/JMG.12551
Publisher: Elsevier BV
Date: 02-2021
Publisher: Wiley
Date: 10-11-2010
Publisher: Wiley
Date: 11-02-2018
DOI: 10.1111/TER.12323
Publisher: Elsevier BV
Date: 08-2019
Publisher: MDPI AG
Date: 21-04-2018
DOI: 10.3390/MIN8040171
Publisher: Elsevier BV
Date: 03-2014
Publisher: Elsevier BV
Date: 03-2018
Publisher: Geological Society of America
Date: 04-2010
DOI: 10.1130/G30522C.1
Publisher: Elsevier BV
Date: 02-2019
Publisher: MDPI AG
Date: 05-04-2018
DOI: 10.3390/GEOSCIENCES8040124
Abstract: This study uses the uniaxial compressive strength (UCS), the indirect tensile strength (ITS) and the point load tests (PLT) to determine the strength and deformation behavior of previously deformed and altered tonalite and anorthosite. In general, veined s les show higher strength because the vein material has both cohesive and adhesive properties while fractures have no cohesion, only frictional resistance. This implies that each rock category has to be treated independently and absolute strength predictions are inaccurate. Thus, the conversion factor k is a s le specific parameter and does not have a universal value. The ratio of UCS/ITS appears to be related to the rock strength and can be used to classify rocks based on their strength. The shear strength parameters, the friction angle and the cohesion, cannot be calculated for rocks with pre-existing planes of weakness. Reactivation is favoured only for planes oriented less than 20° to the maximum stress. For planes oriented between 20° and 50° to the maximum stress, failure occurs by a combination of reactivation and newly formed fractures, while for orientations above 50°, new shear fractures are favoured. This suggest that the Byerlee’s law of reactivation operates exclusively for planes oriented ≤10° to the maximum stress.
Publisher: Elsevier BV
Date: 02-2020
Publisher: Elsevier BV
Date: 11-2021
Publisher: Elsevier BV
Date: 10-2021
Publisher: Elsevier BV
Date: 11-2021
Publisher: Springer Science and Business Media LLC
Date: 10-2010
Publisher: Elsevier BV
Date: 06-2018
Publisher: Elsevier BV
Date: 03-2013
Publisher: Wiley
Date: 12-2014
No related grants have been discovered for Ioan Sanislav.