TY - GEN
T1 - FORMATION AND STABILITY OF STEEPLY DIPPING JOINT SETS.
AU - Kemeny, John
AU - Cook, Neville G.W.
PY - 1985
Y1 - 1985
N2 - In this paper we utilize the principles of linear elastic fracture mechanics (LEFM), and examine the formation and stability of a system of parallel cracks under a combination of bending and hydrostatic compression, as a possible mechanism for the formation of steeply dipping joint sets. In particular, we develop relationships between the length and spacing of joints, in response to changes in tectonic stresses and strains, and changes in rock fracture toughness. Our results indicate closer joint spacing in rocks with a lower fracture toughness, and wider joint spacing in joints formed at deeper depths. Both of these findings are supported by field observations. (Author abstract. )
AB - In this paper we utilize the principles of linear elastic fracture mechanics (LEFM), and examine the formation and stability of a system of parallel cracks under a combination of bending and hydrostatic compression, as a possible mechanism for the formation of steeply dipping joint sets. In particular, we develop relationships between the length and spacing of joints, in response to changes in tectonic stresses and strains, and changes in rock fracture toughness. Our results indicate closer joint spacing in rocks with a lower fracture toughness, and wider joint spacing in joints formed at deeper depths. Both of these findings are supported by field observations. (Author abstract. )
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M3 - Conference contribution
AN - SCOPUS:0021944833
SN - 9061916011
T3 - Proceedings - Symposium on Rock Mechanics
SP - 471
EP - 478
BT - Proceedings - Symposium on Rock Mechanics
PB - A.A.Balkema
ER -