@booklet {7605,
	title = {DAWSON, J.B. 1994. Quaternary kimberlite volcanism on the Tanzania Craton. Contributions to Mineralogy and Petrology, 116: 473-85.J.B. Dawson, pers. comm., 1989.DAWSON, J.B. and HAWTHORNE, J.B. 1973. Magmatic sedimentation and carbonatitic differentiation},
	year = {1994},
	note = {DAWSON, J.B. 1994. Quaternary kimberlite volcanism on the Tanzania Craton. Contributions to Mineralogy and Petrology, 116: 473-85.J.B. Dawson, pers. comm., 1989.DAWSON, J.B. and HAWTHORNE, J.B. 1973. Magmatic sedimentation and carbonatitic differentiation in kimberlite sills at Benfontein, South Africa. Journal of the Geological Society, London, 129: 61-85.MITCHELL, R.H. 1970. Kimberlite and related rocks - a critical reappraisal. Journal of Geology, 78: 686-704.REID, A.M., DONALDSON, C.H., DAWSON, J.B., BROWN, R.W. and RIDLEY, W.I. 1975a. The Igwisi Hills extrusive "kimberlites". Physics and Chemistry of the Earth, 9: 199-218.SAMPSON, D.N. 1956. The volcanic hills at Igwisi. Records of the Geological Survey of Tanganyika, 3: 47-53.}
}
