geochemistry of the Middle Devonian in the Orcadian Basin * Extended abstract. 173 vi Contents HILutgr...thermal maturity and burial history of the Orcadian basin, Scotland* 203 PARNELL, J. Significance of lacustrine...environment of source-rock deposition in the Orcadian Basin, Scotland 205 Lortus, G. W. F. & GREENSMITH, J...Lacustrine sequences in an early Mesozoic rift basin: Culpeper Basin, Virginia, USA 247 Fu JIAMO, SHENG GUOYING...types of terrestrial petroleum source rocks in China 279 Luo BINJIE, YANG XINGHUA, LIN HEJIE & ZHENG |