The Kashkan Formation (Paleocene to Middle Eocene), consists of conglomerate, sandstone, and siltstone in the Zagros Folded zone, southwest Iran. Type of the sedimentary facies, architectural elements and trace fossils show that Kashkan deposits were formed in a low sinuosity braided stream system, with north to south flow direction. The formation displays coarsening-upward succession reflects ...

(Museum Hotel) mosaics in Hatay province. Archaeometric analysis was performed on 60 tessera samples belonging to 6 different mosaics. In the scope of study, color analysis, P-XRF and petrographic thin section optical microscopy were samples. As a result analyzes, components tesserae documented. According results analysis; main, artifact, transition presence rare earth elements determined. At s...

The study discusses the characteristics of Jurassic reservoir in Shenquan Oilfield Xinjiang. Qiketai Sanjianfang formation mainly develops delta front facies and shore shallow lake sand bodies.The lithological are fine sandstone siltstone, physical properties target layer medium porosity permeability. space is pore type, composed secondary pores, including intergranular dissolved intragranular ...

The slurry–earth pressure balance dual-mode shield has an earth (EPB) and slurry functions. Based on a tunnel project of Guangzhou Metro Line 12 in China, this study investigates the clogging prevention composed stratum with medium–coarse sand argillaceous siltstone. results show that mode was not applicable to excavated soil accumulated easily chamber, causing clogging. total thrust force incr...

岩殿丘陵西縁部の帰属不明の砂質シルト岩試料の堆積年代を明らかにするために，珪藻化石分析を行った．分析した試料からは，珪藻化石帯NPD4A帯（Denticulopsis lauta帯）を特徴づける珪藻化石が産出するため，年代は中期中新世前期と判断される．また，Cavitatus lanceolatusを産することから，本試料の年代は生層準D41.5（Cv. lanceolatusの初産出：15.6 Ma）– D43.2（Cv. lanceolatusの終産出：15.2 Ma）の区間に限定される．珪藻化石層序に基づくと，本試料は比企層群荒川層の上部か市ノ川層に対比される．

[1] We report on frictional properties of rocks within the 3-D crustal volume surrounding the San Andreas Fault Observatory at Depth (SAFOD). Samples include lithologies adjacent to the San Andreas Fault (SAF) in the subsurface, SAFOD borehole rocks, and synthetic fault gouge composed of talc, serpentinite, and quartz. Granodiorite, arkosic sandstone, and siltstone samples from the SAFOD boreho...

For underground mining and construction, it is important to obtain a discontinuities’ model of rocks for simulations to evaluate rock stability around the working space and fluid flow in these rocks. We have developed a method using the fractal property of acoustic emission (AE) source distribution to construct a feasible crack distribution model. We confirmed the usefulness of the model throug...

Continental siltstones of the Mesoproterozoic Copper Harbor Formation, Michigan contain macroscopic structures of a size and morphological complexity commonly associated with fossils of eukaryotic macroorganisms. A biogenic origin for these structures would significantly augment the Proterozoic continental fossil record, which is currently poor, and also add to a growing body of sedimentologica...

Patterns of plant distribution by palaeoenvironment were examined across the Pennsylvanian-Permian transition in North-Central Texas. Stratigraphically recurrent packages of distinct lithofacies, representing different habitats, contain qualitatively and quantitatively different macrofloras and microfloras. The species pools demonstrate niche conservatism, remaining closely tied to specific hab...