The necessary core samples cannot always be obtained from weak and block-in-matrix conglomeratic rock.
Behnaz Minaeian, Kaveh Ahangari 2017, 'Prediction of the uniaxial compressive strength and Brazilian tensile strength ofweak conglomerate', International Journal of Geo-Engineeringhttp://link.springer.com/article/10.1186/s40703-017-0056-9. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
A network of groundwater pathways has been developed above the impermeable marls underlying the conglomeratic strata.
John Alexopoulos, Emmanuel Vassilakis, Spyridon Dilalos 2014, 'Combined geophysical techniques for detailed groundwater flow investigation in tectonicallydeformed fractured rocks', Annals of Geophysicshttp://www.annalsofgeophysics.eu/index.php/annals/article/view/6236. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)