Results 131 to 140 of about 167,662 (294)

Petrography and Organic Geochemistry Characterizations of Lower Paleozoic Organic-Rich Shale in the Northwestern Upper Yangtze Plate: Niutitang Formation and Longmaxi Formation, Dabashan Foreland Belt

, 2018
Measurements of total organic carbon, Rock-Eval pyrolysis, X-ray diffraction, scanning electron microscope, maceral examination, gas chromatography, and gas chromatography-mass spectrometry were conducted on the organic-rich shale of Lower Paleozoic ...
Di Zhao, Delu Li, Feng Xu, Rongxi Li
core   +1 more source

Students’ Experiences of Teachers’ Ways of Unpacking Visual Representations in the Context of Intermolecular Forces

Science Education, Volume 110, Issue 4, Page 1133-1151, July 2026.
ABSTRACT This is the third article in a series, emanating from a project that used social semiotics and phenomenography to explore the role visual representations play in the teaching and learning of chemistry. Building on our earlier work that identified five qualitatively different ways that teachers may use to unpack visual representations in their ...
Emelie Patron, Cedric Linder, Jonathan Clark, Susanne Wikman   +3 more
wiley   +1 more source

Anisotropic Dynamic and Static Mechanical Properties of Organic-rich Shale: The Influence of Stress

, 2019
These data and codes are for submission of a paper titled 'Anisotropic dynamic and static mechanical properties of organic-rich shale: the influence of stress' to the Journal of Geophysical ...
YANG WANG
core   +1 more source

Exploring the lichenization continuum through the marine tripartite symbiosis of Collemopsidium pelvetiae

American Journal of Botany, Volume 113, Issue 6, June 2026.
Abstract Premise Symbioses between lichen‐forming fungi and brown algae (phaeophytes) are extremely rare. We investigated the interactions between the marine fungus Collemopsidium pelvetiae and its two photosynthetic partners, the brown alga Pelvetia canaliculata and a cyanobacterial symbiont to address questions on symbiosis biology, lichenization ...
Sergio Pérez‐Ortega, Rúdiger Ortiz‐Álvarez, Jacek Wierzchos, Miguel Blázquez, Alain Gérault, Asunción de los Ríos   +5 more
wiley   +1 more source

Petrological and Geochemical Characteristics of the Lower Cambrian Shuijingtuo Formation in the Middle Yangtze Block, South China: Implications for Organic Matter Accumulation on Carbonate Platform

Journal of Marine Science and Engineering
Understanding the development characteristics and controlling factors of organic-rich shales in carbonate platform settings is essential for predicting their distribution and assessing their natural gas exploration potential.
Baomin Zhang, Quansheng Cai, Guotao Zhang, Oumar Ibrahima Kane, Lin Chen, An Liu, Peng Zhou, Ruyue Wang   +7 more
doaj   +1 more source

Quantification of the Eocene–Oligocene transition in the Zagros Foreland Basin: Palaeogeographic control on sequence architecture and tectonic signal preservation

The Depositional Record, Volume 12, Issue 3, June 2026.
New bio‐sequence framework for the Eocene–Oligocene transition in Zagros. Geochemical data validate basin depth control on SB1 vs. SB2 boundaries. SEM‐EDS analyses confirm subaerial exposure versus continuous deposition. Sensitivity analysis quantifies sub‐10% uncertainty in stratigraphic interpretations. Resolves the Pyrenean orogeny's variable impact
Sahar Rokni, Vahid Ahmadi, Seyed Hamid Vaziri, Ali Aghanabati, Pooria Kianoush   +4 more
wiley   +1 more source

Subtask 4.4: Effect of oil shale processing on water composition

, 2011
presentationA presentation at the Unconventional Fuels from Oil Shale and Oil Sands Project Review Meeting on March 10-11, 2011. The overall goal is to asses aquifers in the Uinta Basin to determine where saline water (produced along with conventional ...
Tiwari, Pankaj; Deo, Milind
core  

Dominant controls on organic-rich shale deposition: Geochemical evidences from the Marcellus Shale in the Appalachian basin

, 2016
This dissertation presents new results of the linkages between primary productivity, bottom water redox conditions and clastic input associated with the Acadian orogeny of the Marcellus Shale.;Chapter 1 compares the isotopic and geochemical ...
Chen, Ruiqian
core   +1 more source

Thicket Formation and Light Limitation Drive Patch‐Scale Vegetation Transitions in a Subtropical Savanna

Ecology and Evolution, Volume 16, Issue 6, June 2026.
Bush encroachment drives a shift from savanna dominated by Vachellia karroo to thicket vegetation. As canopies close, light availability declines, herbaceous cover and species richness decrease, and shade‐tolerant species replace open‐savanna taxa. Woody cover above ca.
Marina R. Khoza, Susanne Vetter
wiley   +1 more source

Origins Under the Blowtorch: Frequent Fire Shifts the Balance Between Sunda‐Origin and Sahul‐Origin Plant Species in a Tropical Savanna

Ecology and Evolution, Volume 16, Issue 6, June 2026.
We examined the effect of fire frequency on the composition of vegetation of different biogeographic origins, to understand how frequently an ecosystem can be subject to fire but still retain its evolutionary diversity. There was dramatic structural and biogeographic change in less than 20 years from dry tropical woodlands into savannas, creating ...
Susanna Rozsa Bryceson, John William Morgan   +1 more
wiley   +1 more source