Facies description

The sections that follow give specific descriptions of some sites that illustrate the facies concept. Sediment samples were collected, sieved, and weighed to generate particle size distributions. These data are shown on the (J) scale commonly used in sedimentary petrology. The scale is defined... 

Fig. 9. Stratigraphical cross-section, Angel Formation, Angel Field The Upper Angel Formation is defined by the relatively clean, massive gamma-ray response, representing stacked mass-flow sandstones of marine origin that extend down to the Mid D. jurassicum boundary. All four wells encountered gas and condensate reserves within this stratigraphical interval (see Fig. 20 for a location map). Only at Angel-2 were major dolomite-cemented zones intersected (shaded), which cannot be explained by facies variations between the well locations, based on GR log motives and core descriptions of Upper Angel Formation sandstones.

Fig. 4. (A) Stratigraphy of Carboniferous rocks at Ballycastle, based on outcrop logging and data from Wilson Robbie (1966). Sandstones continue for approximately 200 m below the base of the log but are poorly exposed. (B) Sedimentary log of the study horizon labelled with sampling sites (1) cemented fractures and host sandstone (2) the Main Limestone (3) sandstone of similar facies but lacking dolomite-cemented fractures (4) dolomite beef vein. See text for description of facies associations.

The success of these classifications is a direct result of the adoption of a descriptive approach to the definition of mental disorders, more or less consciously emulating the scientific basis of disease classification in physical medicine.If mental illnesses are physical diseases, why is there a need to emulate the scientific basis of disease classification in physical medicine The need to emulate isprima facie evidence that mental illnesses are not diseases. Nevertheless, Fulford maintains Once illness and disease are clearly distinguished, however, it becomes possible to compare like with like, mental illness ... 

The data shown in Table 1 must be examined with regard to the thermobalance data obtained in the ICTA certification program. The prima facie expectation is that the measured Curie temperature would be near T3 of Figure 2. This is approximately true. The degree to which it is descriptive is in part dependent upon the form of the actual curve obtained on the thermobalance the slopes of the magnetic force vs. temperature vary for the several materials. 

Gagnier, P.-Y. (1991) Ordovician vertebrates from Bolivia comments on Sacabambaspis janvieri and description of Andinaspis suarezorum nov. gen. et sp. , in Suarez-Soruco, R. (ed.) Fosiles y facies de Bolivia— Vol. 1 Vertebrados , Revista Tecnica de YPFB, 12, 371-9. 

Since the original description by Linnaeus was published, several species have been described which had the general facies of his tree but differed in some important characters. 

The first part of the present chapter describes how three-dimensional seismic facies can help characterizing the reservoir. Other techniques are available, as described in the chapters [29, 36]. These facies, also called geobodies, represent some typical geological features, which in turn can be linked to lithologies, thereby giving a more detailed and better structural description of the reservoir. The approach adopted here for linking three-dimensional seismic facies to lithologies is explained later in the property voxelization step. 

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