|
Article |
Three borehole sections in the Traboe area provide a partial section through a layered basic-ultrabasic complex, previously referred to as the Traboe hornblende schists. This complex, though dismembered into thrust sheets, shows an overall NE-dipping stratigraphy with a generalized upward sequence from dunite and pyroxenite to gabbro and anorthosite. The bulk composition of the ultramafic rocks is quite different from the dominantly lherzolitic composition of the main Lizard peridotite. The composition of the basic rocks is also markedly different from that of the Landewednack hornblende schists with which they have previously been correlated. The deformation and recrystallization of the rocks has been complex and locally intense, producing a fine granular fabric in many rock types. Amphibolitization has affected many rock types to give assemblages dominated by hornblende. Mineral composition varies with position in the stratigraphic sequence and is consistent with crystallization of the complex from differentiating basic magma pulses.
This article has been cited by other articles:
 |
|
 |
|
  C. A. Cook, C. A. COOK, R. E. HOLDSWORTH, and M. T. STYLES The emplacement of peridotites and associated oceanic rocks from the Lizard Complex, southwest England Geological Magazine, 2002; 139: 27 - 45. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. P. NUTMAN, D. H. GREEN, C. A. COOK, M. T. STYLES, and R. E. HOLDSWORTH SHRIMP U-Pb zircon dating of the exhumation of the Lizard Peridotite and its emplacement over crustal rocks: constraints for tectonic models Journal of the Geological Society, 2001; 158: 809 - 820. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
H. A. I. Sandeman, H. A. I. SANDEMAN, A. H. CLARK, D. J. SCOTT, and J. G. MALPAS The Kennack Gneiss of the Lizard Peninsula, Cornwall, SW England: commingling and mixing of mafic and felsic magmas accompanying Givetian continental incorporation of the Lizard ophiolite Journal of the Geological Society, 2000; 157: 1227 - 1242. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. A. Cook, C. A. COOK, R. E. HOLDSWORTH, M. T. STYLES, and J. A. PEARCE Pre-emplacement structural history recorded by mantle peridotites: an example from the Lizard Complex, SW England Journal of the Geological Society, 2000; 157: 1049 - 1064. [Abstract] [Full Text]
|
|
|
|
 |
|
 S. Allerton and C. J. Macleod Fault-controlled magma transport through the mantle lithosphere at slow-spreading ridges Geological Society, London, Special Publications, 1998; 148: 29 - 42. [Abstract] [PDF]
|
|
|
|
|
|
K. A. JONES Deformation and emplacement of the Lizard Ophiolite Complex, SW England, based on evidence from the Basal Unit Journal of the Geological Society, 1997; 154: 871 - 885. [Abstract] [PDF]
|
|
|
|
|
|
H. A. SANDEMAN, A. H. CLARK, M. T. STYLES, D. J. SCOTT, J. G. MALPAS, and E. FARRAR Geochemistry and U-Pb and 40Ar-39Ar geochronology of the Man of War Gneiss, Lizard Complex, SW England: pre-Hercynian arc-type crust with a Sudeten-Iberian connection Journal of the Geological Society, 1997; 154: 403 - 417. [Abstract] [PDF]
|
|
|
|
|
|
K. E. ROLLIN Geophysical surveys on the Lizard Complex, Cornwall Journal of the Geological Society, 1986; 143: 437 - 446. [Abstract] [PDF]
|
|
|
|
|
|
P. A. Floyd Geochemical characteristics and comparison of the basic rocks of the Lizard Complex and the basaltic lavas within the Hercynian troughs of SW England Journal of the Geological Society, 1984; 141: 61 - 70. [Abstract] [PDF]
|
|
|
|
|
|
K. Smith and R. C. Leake Geochemical soil surveys as an aid to mapping and interpretation of the Lizard Complex Journal of the Geological Society, 1984; 141: 71 - 78. [Abstract] [PDF]
|
|
