Correlative Light Optical and Scanning Electron Microscopy of Minerals: A Methodology Study

L. P. Wilding, H. D. Geissinger

Journal of Sedimentary Research (SEPM)

... to merge with the base of the ledge in a tapered form. The outline of the upper planar portion of the microcline grain (c) or step cleavage traces (d...

Limestone Response to Stress: Pressure Solution and Dolomitization

Harold Rogers Wanless

Journal of Sedimentary Research (SEPM)

... of a limestone layer between adjacent nodules by microstylolite solution is gradual (tapered) and less than 30 percent in most of the Muav Limestone...

The Growth History of Toe Thrusts of the Niger Delta and the Role of Pore Pressure

Scot W. Krueger, Neil T. Grant

AAPG Special Volumes

...) described and modeled the Niger Delta as a critically tapered sediment wedge. The theory of critical taper wedge mechanics states that once a wedge reaches...

Unusual Phosphate Concretions Related to Groundwater Flow in a Continental Environment

Medard Thiry, Jean Galbois, Jean-Michel Schmitt

Journal of Sedimentary Research (SEPM)

...). All concretions have slightly tapered and rounded ends. The fingers and all the elongated shapes of the concretions have uniform orientation, towards...

Significance of Recently Discovered Cambrian Fossils and Reinterpretation of Neruokpuk Formation, Northeastern Alaska: GEOLOGICAL NOTES

J. T. Dutro, Jr. , W. P. Brosge , H. N. Reiser

AAPG Bulletin

... to the glabella; a relatively short, well differentiated frontal area, an occipital spine, and an unfurrowed, anteriorly tapered glabella. This is most...

Continental Slope and Upper Rise off Western Nova Scotia and Georges Bank

Elazar Uchupi, R. D. Ballard, J. P. Ellis

AAPG Bulletin

... segments, each 150 m long. The sound source consisted of four air guns in a tapered array with chamber sizes of 300,120,80, and 40 cu in., operated...

Oil and Gas Developments in Michigan in 1985

D. Michael Bricker, William L. Henderson

AAPG Bulletin

..., the shallow Traverse drilling so vigorous in recent years seems to have tapered off. There are doubtless other Traverse prospects to be explored...

Halokinetic sequences and diapiric structural kinematics in the field: Two-day excursion to La Popa Basin, northeastern Mexico

Timothy F. Lawton, Katherine A. Giles, and Mark G. Rowan

AAPG Bulletin

... boundaries of the composite halokinetic sequences to be essentially parallel. Wedge halokinetic sequences stack into tapered composite halokinetic...

2006 Gulf Coast Association of Geological Societies 54th Annual Convention, San Antonio, Texas, Abstracts, #90056 (2006).

Search and Discovery.com

Tar Sand Triangle Bitumen Deposit, Garfield and Wayne Counties, Utah; #50883 (2013)

Steven Schamel

Search and Discovery.com

...) is recognized in wells. The oil-water contact (OWC) establishes the western and northwestern down-dip tapered edge of the deposit. The eastern up-dip...

The Three Elements of Structural Geology Part 8, #41849 (2016).

Engelder,

Search and Discovery.com

... 2.2.3 2.2.4 2.2.5 Veins Transitional-Tensile Fracture Shear Failure Friction: Critically Stressed Earth The Tapered Wedge 3.1.1 3.1.2 3.1.3...

GRAVITY MODELING OF PROTEROZOIC STRUCTURES IN NORTH-CENTRAL NORTH DAKOTA.

KATHRYN C. LUTHER

Williston Basin Symposium

... for the large circular gravity high (Fig. 13). The top was modeled as a cone, the bottom as a tapered cylinder. The cone has a bottom radius...

Characterization of Fluvial Sand Bodies in the Neslen and lower Farrer Formations (Upper Cretaceous), Lower Sego Canyon, Utah

Rex Cole

Rocky Mountain Association of Geologists

... bodies may be abrupt or tapered (Fig. 9). The tapered edges are often very calcareous and bioturbated. Single-story sand bodies were probably deposited...

Early Pliocene (5 Ma) shark…cetacean trophic interaction from Langebaanweg, western coast of South Africa

Romala Govender, Anusuya Chinsamy

PALAIOS

... is a deeper groove with ridges and grooves caused by tooth serrations. 2. CF2 is a simple groove with tapered end and no trace of serrations. 3. CF3...

A LATE CRETACEOUS SHARK COPROLITE WITH BABY FRESHWATER TURTLE VERTEBRAE INCLUSIONS

DAVID R. SCHWIMMER, ROBERT E. WEEMS, ALBERT E. SANDERS

PALAIOS

... (defined below), with the tapered end presumed to be posterior (i.e., toward the anal direction; Hunt and Lucas 2012). Coprolites from neoselachians...

Biostratigraphy and Lithostratigraphy of Chert in the Franciscan Complex, Marin Headlands, California

Benita Murchey

Pacific Section SEPM

... to 1.80 m sieve size population m f r a c t i o n , the majority being small theoperids with enlarged rounded terminal chambers or closed tapered d i...

New Bivalves, Beichuaniacea, from the Lower Devonian of Sichuan, China

Daoyuan Gu, Xiezhang Liu

CSPG Special Publications

..., wedge-shaped; anterior end broadly rounded; posterior and elongate and tapered. Umbonal ridge prominent, especially dorsally. Shell margin broadly...

Characterization of Fluvial Sand Bodies in the Neslen and Lower Farrer Formations (Upper Cretaceous), Lower Sego Canyon, Utah

Rex Cole

Utah Geological Association

... scour surfaces with mudchip lags are generally rare. The lateral terminations of single-story sand bodies may be abrupt or tapered (Fig. 9...

PowerPoint Presentation

Engelder

Search and Discovery.com

... in schizosphere Fracture mechanics -- Tapered wedge Quantifying strain -- Nappes Properties of faults -- Fault bend folding Basement-involved folds...

The Three Elements of Structural Geology Part 1, #41849 (2016).

Terry Engelder

Search and Discovery.com

... joint set Veins – Tapered wedge Quantifying strain - Plastosphere Cleavage – Nappes Properties of faults – Fault bend folding Basement-involved folds...

The Three Elements of Structural Geology, #41849 (2017).

Terry Engelder

Search and Discovery.com

... 3.1--3.3.35 Fourth Sessions 4.1.1--4.2.5 Fifth Sessions 5.1.1--5.2.4 References Prologue --- Stress in schizosphere Fracture mechanics --- Tapered...

Ecological interactions between Rhipidomella (Orthides, Brachiopoda) and its endoskeletobionts and predators from the Middle Devonian Dundee Formation of Ohio, United States

Rituparna Bose, Chris Schneider, P. David Polly, Margaret M. Yacobucci

PALAIOS

..., deformed growth lines. Two deep tapered scars were observed in one specimen; one located in the central region and the other in the lower right lateral...

Historical Oil Samples from Pennsylvania: Geochemical Correlation

Nicola DahDah, Rasoul Sorkhabi, James Collister

Petroleum History Institute

... wells at the Drake Park at that time. Figure 6. GC chromatogram for Sample 15003C (“The Original Drake Well Park”). The thin, slightly tapered bottle...

Neoichnology of burrowing millipedes: Linking modern burrow morphology, organism behavior, and sediment properties to interpret continental ichnofossils

Daniel I. Hembree

PALAIOS

... into the soil, pushing aside sediment; (2) wedgers, which have laterally expanded and tapered keels that are pushed into crevices and lifted to widen...

“Window” Outcrop Analogs for Greater Natural Buttes Field, Uinta Basin, Utah

Howard White, Rex Cole, Steve Stancel, Carrie Lee, Logan Macmillan

Rocky Mountain Association of Geologists

.... The lateral terminations of the single-story sand bodies may be abrupt or tapered. Tapered edges are typically very calcareous and bioturbated. Single...