Results 21 to 30 of about 70,995 (337)

An effective palynological preparation procedure using hydrogen peroxide [PDF]

, 2007
Most pre-Quaternary palynology samples are currently prepared by demineralization of the sediment/sedimentary rock matrix using hydrochloric and hydrofluoric acids (HCl and HF respectively).
Kyffin-Hughes, Jane E., Owens, Bernard, Riding, James   +2 more
core   +2 more sources

Sedimentary geology of the Middle Carboniferous of the Donbas region (Dniepr-Donets basin, Ukraine) [PDF]

, 2015
Peer reviewedPublisher ...
Abels, Hemmo A., Boekhout, Flora, Bosch, Wolter, Geluk, Mark, Hamers, Maartje, Kitchka, Alexander, Stephenson, Randell A., van der Meer, Douwe G., van Hinsbergen, Douwe J.J.   +8 more
core   +2 more sources

Geological conditions and controls of gas content of Carboniferous shale gas reservoirs in western Guizhou

Shiyou shiyan dizhi, 2022
The Carboniferous Jiusi Formation is an important organic-rich shale stratum developed in Guizhou province, yet no breakthrough has been achieved for shale gas exploration and development.
Bingren JIANG, Ende DENG, Tongbao YANG, Minghui HAN, Zijie MA   +4 more
doaj   +1 more source

The fossil record of early tetrapods: worker effort and the end-Permian mass extinction [PDF]

, 2010
It is important to understand the quality of the fossil record of early tetrapods (Tetrapoda, minus Lissamphibia and Amniota) because of their key role in the transition of vertebrates from water to land, their dominance of terrestrial faunas for over ...
Bebber D.F., Benton M.J., Benton M.J., Benton M.J., Emma L. Bernard, Fara E., Fara E., Flessa K.W., Jaeger G.F., James E. Tarver, Marcello Ruta, Maxwell W.D., Michael J. Benton, Peters S.E., Raup D.M., Schoch R.R., Sepkoski J.J., Valentine J.W., Wickström L.M.   +18 more
core   +3 more sources

Nature and timing of Late Mississippian to Mid-Pennsylvanian glacio-eustatic sea-level changes of the Pennine Basin, UK [PDF]

, 2012
The Pennine Basin of northern England contains a comparatively complete Serpukhovian– Moscovian succession characterized by high-resolution ammonoid zonation and cyclic paralic sedimentation.
Condon, Daniel J., Waters, Colin N.
core   +2 more sources

Sedimentation conditions and clast transport during the formation of sedimentary paleobasins in the north of Irkutsk Oblast and river network formation

Известия высших учебных заведений: Геология и разведка, 2023
Background. Changes in the composition of clastic material reflect changes in both the paleogeographic environment and clast transport paths. In turn, this indicates changes in the conditions of regional development.
N. A. Orlova, M. V. Orlov
doaj   +1 more source

A basal aïstopod from the earliest Pennsylvanian of Canada, and the antiquity of the first limbless tetrapod lineage [PDF]

Royal Society Open Science, 2018
Earliest Pennsylvanian (Bashkirian) vertebrate fossil assemblages of the Joggins Formation (Cumberland Group) of Nova Scotia, Canada, have long been noted for the unique representation of the earliest known crown amniotes, but the overall vertebrate ...
Jason D. Pardo, Arjan Mann
doaj   +1 more source

Evolution of leaf-form in land plants linked to atmospheric CO2 decline in the Late Palaeozoic era [PDF]

, 2001
The widespread appearance of megaphyll leaves, with their branched veins and planate form, did not occur until the close of the Devonian period at about 360 Myr ago.
AH Knoll, C. P. Osborne, CI Mora, D Edwards, D Edwards, D. J. Beerling, DJ Beerling, DJ Beerling, DJ Beerling, DJ Beerling, FI Woodward, G Bowes, GD Farquhar, GD Farquhar, JC McElwain, KJ Niklas, LA Martinelli, P Kenrick, PG Gensel, PG Gensel, PJ Schulte, PJ Valdes, PS Nobel, RA Berner, RA Berner, S Von Caemmerer, SG Hao, TJ Algeo, W Larcher, W Zimmermann, W. G. Chaloner, WG Chaloner, WG Chaloner   +32 more
core   +1 more source

Influence of nappe structure on the Carboniferous volcanic reservoir in the middle of the Hongche Fault Zone, Junggar Basin, China

Open Geosciences, 2023
This work presents an in-depth examination of the Carboniferous volcanic reservoir within the CH471 well area, situated in the central portion of the Hongche fault zone on the northwestern margin of the Junggar Basin.
Chen Zhengyu, Qin Qirong, Li Hu, Zhou Jiling, Wang Jie   +4 more
doaj   +1 more source

Stratigraphic-Tectonic Evolution and Characterization of the Carboniferous in the Karamay–Baikouquan Fault Zone in the Northwestern Margin of the Junggar Basin, Northwest China

Frontiers in Earth Science, 2022
The northwestern margin of the Junggar Basin has a complex tectonic history, which is challenging for hydrocarbon exploration. This study highlights the structural patterns, tectonic evolution, and controlling factors of the Karamay–Baikouquan Fault Zone
Yinshan Ma, Yinshan Ma, Tao Wang, Yazhou Yang, Yazhou Yang, Zhiwei Liu, Lei Zhang, Yu Bai   +7 more
doaj   +1 more source