AWARDS
In October 1981 awards were presented to various members of the GSTT for the first time.
Awards were presented in the following categories:
(i) Best Technical Paper.
(ii) Best Field Trip.
(iii) Outstanding Corporate Member.
(iv) Prominent Person Award
(v) Most Outstanding Member.
(vi) Special Award.
At an executive meeting held on 19th October 1981, it was agreed that the GSTT would present annual awards for
the following
(i) Best Technical Paper.
(ii) Best Field Trip.
(iii) Outstanding Corporate Member.
Five year awards would also be presented. These would be chosen from the annual recipients in the above categories.
In addition, five year awards would also be given for Most Outstanding Member and Most Prominent Member.
FIELD TRIP TO EASTERN VENEZUELA
The GSTT had a most excellent field trip to Eastern Venezuela over the period March 19, 1981 to March 24, 1981.
Seventeen participants representing all oil companies, the Ministry of Energy and consulting firms made the trip.
Geologically the trip concentrated on Cretaceous and lower Tertiary sequences which in several localities near
Burgantin, Pto. La Cruz and S.E. of Cumana are exposed as near continuous outcrops. In addition, the Upper Tertiary
and metamorphosed Northern Range Type Cretaceous sediments were visited briefly. The primary purpose of the field
trip was to study the Cretaceous and lower Tertiary in the Eastern Range of Venezuela. This prominent uplift plunges
eastwards into Trinidad and is partially represented by the Central Range, the Southern Range and the covered Cretaceous
Highs in the Northern Basin. Most important however are the thick sandstones, limestones and shales in this interval
which have not been adequately explored in Trinidad and which represent excellent reservoir and source beds. For
Trinidad, the lower Cretaceous reservoirs are probably the most important, therefore the basal Barranquin sandstone
(+/- 6000' exposed) and Overlying El Cantil limestone ( +/-2OOO feet) were studied in detail at several localities.
The upper Cretaceous Querecual and San Antonio formations which are equivalent to the Guatier and Naparima Hill
Fms. of Southern Trinidad and which are considered good source beds were also studied in detail.
Overall, the trip was very successful and a return to Venezuela to visit the same section in the Maracaibo District
is being planned.
A. D. Ferrel.
BOOK REVIEW
Sedimentation in Oblique - Slip Mobile Zones
Sedimentation in Oblique - Slip Mobile Zones, edited by Peter F. Ballance and Harold G Reading, 1980, Special Publication
No.4 of the International Association of Sedimentologists, 265 p. Order from John Wiley and Sons, Inc., One Wiley
Drive, Somerset, New Jersey 08873. Price, $37.50 (U.S.)
This volume contains several outstanding papers, and in view of the current active interest in strike - slip models
for generating sedimentary basins and creating proper conditions for petroleum formation and migration, it should
be of interest to petroleum geologists.
The editors P.F. Ballance and H. G. Reading, have defined oblique - slip mobile zones as areas where the movement
of adjacent blocks is both parallel with and perpendicular to the zone; as a result, both transpression and transtension
may occur within the zones and vertical movements are important. Reading's review article summarizes many of the
characteristics of strike-fault Systems and major features of basins that develop along them. Rodgers shows how
basins develop along enechelon strike - slip faults.
The regional papers are of variable interest to petroleum geologists. Steel and Gloppen's paper on the Hornelen
Old Red Sandstone basin of Western Norway beautifully documents the geometry of basin infilling and development
of different scales of fining - and coarsening upward cycles in response to climatic, tectonic and progradational
events. Howell and others summarize the development of sedimentary basins in California in response to orthogonal
subduction, oblique subduction, and transform faulting; their brief interpretations of the development of the Southern
California borderland will be of most interest to petroleum geologists.
Because the volume is an outgrowth of a symposium convened in 1979 for a meeting of the Australia - New Zealand
Association for the Advancement of Science (ANZAAS), 6 of the 11 papers on specific areas discuss the geology of
New Zealand. The remaining papers cover aspects of the geologic history of late Mesozoic and Cenozoic California,
Old Red Sandstone basins of Scotland and Norway, Hercynian basins of Northern Spain, and Late Cretaceous and early
Tertiary basins of southwestern Turkey.
Staff movements in 1981
M. Lutchman to Chief Geologist Trinidad - Tesoro Pet. Co. Ltd.; Santa Flora. Formerly Chief Geologist Trinmar Ltd..
Point Fortin.
M. Nath to Chief Geologist Trinmar Ltd.; Formerly Senior Geologist Trinidad - Tesoro Pet. Co. Ltd.
W. Boodoo, to Geologist Occidental of Trinidad. Formerly Development Geologist Trintoc.
H. Tuitt to Geologist Amoco Trinidad Oil Co. Formerly Development Geologist Texaco Trinidad Inc.
W. Lalla to Senior Geologist (Exploration) Texaco New Orleans Formerly Senior Geologist Texaco Trinidad Inc.
M.D. Borde. to Geophysicist Calgary, Canada; Formerly Assistant Geophysicist Trinidad Tesoro Pet. Co. Ltd.
A. P. Frink to private consultancy Houston, Texas; Formerly Senior Geophysicist Trinidad Tesoro Pet. Co. Ltd.
L. J. Tuttle to private consultancy Houston, Texas; Formerly Senior Palaeontologist Trinidad - Tesoro Pet. Co.
Ltd.
C. Nazir to Geologist Montana, U.S.A. Formerly Geologist Trinidad - Tesoro Pet. Co. Ltd.
Dr. K. M. Persad. Premier Consolidated Oilfields Ltd. Formerly Chief Geologist Trintoc.
R. M. Gaibraith to Geophysicist, Texaco Inc., Coral Gables. Formerly Chief Explorationist Texaco Trinidad Inc.
C. C. Henderson to Exploration Manager Texaco Inc., Houston. Formerly Asst. Mgr. Prod. Div. (Exploration) Texaco
Trinidad Inc.
E. B. Knott. On Pre-retirement leave. Formerly Resident Manager Tenneco Oil Co. of Trinidad.
R. K. Peare. to Chief Geologist, Texaco, Lagos, Nigeria. Formerly Senior Exploration Geologist, Texaco Trinidad
Inc.
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