Petroleum occurrences in the Mount Diablo area, California

2021 ◽  
Author(s):  
Scott Hector ◽  
Karen Blake ◽  
Tim Elam
Keyword(s):  
Natural Gas ◽  
Source Rock ◽  
Late Cretaceous ◽  
Upper Cretaceous ◽  
Sedimentary Rocks ◽  
Gas Storage ◽  
Oil Field ◽  
Thick Section ◽  
Gas Fields ◽  
Commercial Field

ABSTRACT Mount Diablo is flanked on its northeast side by a thick section of Late Cretaceous and Tertiary sedimentary rocks, which produced small hydrocarbon accumulations in the Los Medanos, Willow Pass, Mulligan Hill, and Concord gas fields. The first well was drilled in 1864, and today most of the active wells on the northeast flank are used for gas storage by Pacific Gas and Electric Company. These fields, which also include the Brentwood oil field, lie to the northeast of Mount Diablo and have produced 6.4 million cubic meters (225 billion cubic feet) of natural gas and over 57 million cubic meters (9.1 million barrels) of oil. The main reservoirs for the Sacramento Basin are sandstones in the Late Cretaceous and Paleogene section. The source rock there is primarily from the Upper Cretaceous Dobbins Shale, which began generation 75 m.y. ago, and the Winters Shale, which began generation 35 m.y. ago. The Livermore Basin is located on the western and southwestern sides of the mountain. The only commercial field in that basin is the small Livermore oil field. This field produces primarily from Miocene sandstones. The Livermore Basin is a Neogene basin that was syntectonically formed in the last few million years and continues to grow today. Studies of the black oils found in the Livermore field show that the source rock is likely the Eocene Nortonville Shale, though the Upper Cretaceous Moreno shale is also considered to be a possible source. The Livermore field has produced 12 million cubic meters of oil (1.9 million barrels).

Tectonic Overprinting near Ware, Northern Rocky Mountain Trench

1972 ◽  
Vol 9 (7) ◽  
pp. 903-913 ◽  
Author(s):  
G. H. Eisbacher
Keyword(s):  
Late Cretaceous ◽  
Late Jurassic ◽  
Upper Cretaceous ◽  
Sedimentary Rocks ◽  
Rocky Mountain ◽  
Normal Faulting ◽  
North Central ◽  
The Core ◽  
The North ◽  
Central Cordillera

Mapping in the core of the north–central Cordillera of British Columbia has revealed a system of relatively closely spaced steeply dipping faults cutting across an earlier penetrative fabric consisting of recumbent folds and intensely cleaved sedimentary rocks. The earlier (Mid – Late Jurassic) penetrative deformation was separated from the later (Late Cretaceous – Tertiary) deformation by regional uplift, normal faulting, and initiation of intermontane deposition. The Upper Cretaceous – Lower Tertiary Sifton Formation was involved only in the later deformational pulse. Kink folding and oblique faulting are the principal mechanisms of the later pulse. The orientation of principal regional contraction changed from an early WSW–ENE direction to a late SSW–NNE direction. From this it is inferred that some of the young lineaments along and near the Rocky Mountain Trench are probably oblique–slip faults with unknown, but probably small right–lateral slip components.

PETROLEUM EXPLORATION ACTIVITY IN AUSTRALIA AND PAPUA NEW GUINEA 1972-1973

1973 ◽  
Vol 13 (2) ◽  
pp. 17
Author(s):  
E. R. Smith
Keyword(s):  
Natural Gas ◽  
Papua New Guinea ◽  
New Guinea ◽  
Oil Field ◽  
Petroleum Exploration ◽  
Gas Fields ◽  
Increased Activity ◽  
Exploration Activity ◽  
Cooper Basin

A highlight of 1972 has been the continued success on the Northwest Shelf where it has become apparent that the reserves of natural gas are very large. There have also been two promising oil discoveries in this area.Significant new gas fields were discovered in the Cooper Basin, which have finally assured sufficient reserves for the Sydney market. However the development of the Tirrawarra oil field has been disappointing.Petroleum exploration activity in Australia and Papua New Guinea improved slightly during 1972, mainly because of increased activity in offshore areas. It is likely that this trend will continue through 1973.

scholarly journals Upper Cretaceous lithostratigraphy of the Panagyurishte strip (Central Bulgaria) – part of the Late Cretaceous Apuseni-BanatTimok-Srednogorie magmatic belt

2019 ◽  
Vol 48 (3) ◽  
pp. 11-33
Author(s):  
Dian Vangelov ◽  
Ianko Gerdjikov ◽  
Docho Dochev ◽  
Zornitsa Dotseva ◽  
Stefan Velev ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Upper Cretaceous ◽  
Sedimentary Rocks ◽  
Field Work ◽  
Mineral Deposits ◽  
Published Data ◽  
Practical Application ◽  
Layer Cake ◽  
Stratigraphic Model ◽  
Extinction Event

The investigations of the Upper Cretaceous Panagyurishte and Chelopech volcano-sedimentary strips of the Central Srednogorie tectonic subzone date back to the end of 19th and became more intensive during the middle of the 20th century, mainly due to the discovery of important mineral deposits in the area. Our field work during the last 15 years and analysis of previously published data show that the existing lithostratigraphic scheme does not cover the entire spectrum of lithologies, successions and interrelations in both strips. This study deals with four stratigraphic sections, along the valleys of the Topolnitsa, Kamenitsa and Mirkovska rivers, and their correlation on the basis of the Turonian/Coniacian boundary, local extinction event and palaeontological data that demonstrate the unreliability of already existing schemes. The previously used “layer-cake” stratigraphic model does not reflect the diachronism of the studied units or the existence of subaerial volcano craters, together with synchronous deposits. In this paper, we also propose a subdivision of the intervals containing magmatic and sedimentary rocks into individual members, including non-layered magmatic centres, stratified lava flow and volcanoclastic flow deposits and stratified epiclastic deposits of mainly turbiditic origin, instead of the currently used Chelopech Formation. The presented herein new data do not cover entirely the wide palette of problems with the lithostratigraphy of the area, but clearly demonstrate the necessity of its revision, especially for practical application and better understanding of the Late Cretaceous evolution of the area.

Geoeconomic Leverage of Natural Gas Resources in the Mediterranean

2019 ◽  
Vol 12 (4) ◽  
pp. 141-155 ◽  
Author(s):  
Ahmed Mahdi
Keyword(s):  
Natural Gas ◽  
Economic Resources ◽  
Tel Aviv ◽  
Economic Influence ◽  
The Mediterranean ◽  
Influence Attempts ◽  
Gas Fields

This article examines the claim that Israel’s natural gas exports from its Mediterranean gas fields will give geopolitical leverage to Tel Aviv over the importing countries. Using the geoeconomic tradition of Klaus Knorr and others who wrote about applying leverage using economic resources to gain geopolitical advantage, it is argued that certain criteria have to be satisfied for economic influence attempts, and that Israel’s gas exports do not satisfy these criteria. They include the importer’s supply vulnerability, the supplier’s demand vulnerability, and the salience of energy as an issue between both countries. Israeli gas exports to Egypt are used as a case study.

The crucial boundaries in the development of the late cretaceous biota of plankton foraminifers in the southern part of the Indian ocean

2019 ◽  
Vol 59 (6) ◽  
pp. 1074-1085
Author(s):  
E. A. Sokolova
Keyword(s):  
Indian Ocean ◽  
Species Composition ◽  
Late Cretaceous ◽  
Upper Cretaceous ◽  
Planktonic Foraminifera ◽  
The Indian Ocean ◽  
Systematic Composition ◽  
Climatic Series

The article analyzes own data on the species composition of shells of planktonic foraminifera from the Upper Cretaceous sediments of the Indian Oceans, as well as from the sections of the offshore seas of Australia. The species of planktonic foraminifera are grouped and arranged in a climatic series. An analysis of the change in the systematic composition of foraminifers made it possible to distinguish periods of extreme and intermediate climatic states in the Late Cretaceous.

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