Results 121 to 130 of about 8,158 (163)
Some of the next articles are maybe not open access.
Petrophysical Rocks: Electrofacies and Lithofacies
2014Many years ago, the classification of sedimentary rocks was largely descriptive and relied primarily on petrographic methods for composition and granulometry for particle size. The compositional aspect broadly matches the goals of the previous chapter in estimating mineral content from petrophysical logs.
openaire +1 more source
Lithofacies palaeogeography of the Cambrian in Tarim area
Frontiers of Earth Science in China, 2007The Tarim area in this paper refers to the present Tarim Basin and its surrounding mountains, bounded on the north by the Middle Tianshan Mountains, on the south by the Kunlun Mountains, on the west by the national boundary of China, and on the east by the Altun Mountains. It covers an area of more than 1 000 000 km2.
Zengzhao Feng +4 more
openaire +1 more source
Lithofacies Maps and Regional Sedimentary-Stratigraphic Analysis
AAPG Bulletin, 1948ABSTRACT Lithofacies maps may be prepared in numerous ways, and this paper emphasizes a statistical approach which brings out the magnitude and rates of change in lithologic characteristics for selected stratigraphic intervals. The interval is divided into percentages of clastics (conglomerate, sandstone, shale) and non-clastics ...
openaire +1 more source
Lithofacies as a function of depth in the Strait of Sicily
Geology, 1977Sediment types and depositional environments are correlatable in the Strait of Sicily: coarse calcareous sand layers, interbedded with mud and sandy lutite (fining- and coarsening-upward sequences), prevail on shallow banks; homogeneous mud occurs in the neritic and bathyal environments and also in some basins; and moderate- to well-stratified units ...
Andrés Maldonado, Daniel Jean Stanley
openaire +1 more source
Deep Classified Autoencoder for Lithofacies Identification
IEEE Transactions on Geoscience and Remote Sensing, 2022Xingye Liu +6 more
openaire +1 more source
LITHOFACIES PROPERTIES OF ANTALYA TUFAS
2004The tufa term is described as secondary calcium carbonate deposits which are deposited by biologicand/ or physicochemical processes under cool water conditions and contain macro and micro scales plant, animal remains and bacteria ( especially cyanobacteria ). Tufas have especially deposited at Quaternary and recenttime.
KOŞUN, Erdal +2 more
openaire +1 more source
REGIONAL LITHOFACIES AND PALAEOGEOGRAPHY OF THE GIDGEALPA GROUP
The APEA Journal, 1978The Permian Gidgealpa Group contains major reserves of gas and minor amounts of oil in fluvial to marginal marine sandstone reservoirs within coal measures in the Southern Cooper Basin. Lithofacies analysis of a sequential set of palynologically defined time-rock units through the Gidgealpa Group has clarified depositional trends, identified regions of
openaire +1 more source
Palaeogene Carbonates of Oman: Lithofacies and Stratigraphy
2014Limestones deposited on the southeastern Arabian shelf during the Palaeogene were studied from surface and subsurface locations in North and South Oman. The investigation included an examination of lithofacies, biota distribution, and depositional palaeoenvironment related to stratigraphy.
openaire +1 more source
Chapter 5 Interpreting ignimbrites lithofacies
Geological Society, London, Memoirs, 2002Abstract This chapter presents an approach for ignimbrite description and interpretation. It draws on field, granulometric and fabric data from published descriptions of ignimbrites. To describe ignimbrites, we adopt a non-genetic lithofacies scheme (Table 5.1). This avoids possible connotations of 'ideal' sequences or of specific emplacement
openaire +1 more source
Silurian Biogeography and Lithofacies of Arctic: ABSTRACT
AAPG Bulletin, 1970Llandovery through early Wenlock marine faunas of the Arctic appear to be relatively cosmopolitan in their distribution. Those of the late Wenlock through Pridoli probably belong to the Uralian-Nevadan-Canadian Arctic province; this biogeographic unit developed during the Early Devonian into the Old World province (as opposed to the Appalachian and ...
openaire +1 more source