Petroleum Exploration and Development, 2016 Multiple tests were conducted on graptolite shale samples from Middle Ordovician Pingliang Formation in three typical areas in Ordos Basin to investigate the relationship between micro-nano pore structure, graptolite content, rock composition, TOC ...
Kun DENG +6 more
doaj +2 more sources
Monopodial and Sympodial Growth Modes in the Colonial Graptolithina (Hemichordata, Pterobranchia). [PDF]
Evol DevABSTRACT Two growth modes are recognized in colonial pterobranchs (Graptolithina): monopodial growth and sympodial growth. The earliest colonial Graptolithina likely developed through monopodial growth, a mode of colony formation well‐documented in the extant graptolite Rhabdopleura normani.
Maletz J, Lerosey-Aubril R.
europepmc +2 more sources
The early Ludfordian leintwardinensis graptolite event and the Gorstian-Ludfordian boundary in Bohemia (Silurian, Czech Republic) [PDF]
, 2014 Loydell, David K. +2 more
core +3 more sources
AI-based graptolite identification improves shale gas exploration
bioRxiv, 2022 Graptolites are fossils from the mid-Cambrian to lower Carboniferous periods that inform both our understanding of evolution and the exploration of shale gas [1–4]. The identification of graptolite species remains a visual task carried out by experienced
Zhixing Niu, Honghe Xu
semanticscholar +1 more source
Petroleum Exploration and Development, 2021 Through graptolite identification in profiles, graptolite zone division, contour map compilation, and analysis of mineral composition, TOC content, lamina distribution features of shale samples, the biostratigraphic and reservoir characteristics of ...
Hongyan WANG, Zhensheng SHI, Shasha SUN
doaj +1 more source
In-situ thermal simulation experiment of single organic matter pore evolution in shale
Shiyou shiyan dizhi, 2023 Organic matter pores is the most important shale reservoir space in South China, and the types of organic matter influence the formation and evolution process of organic matter pores.
Binbin XI +7 more
doaj +1 more source
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +1 more source
Darriwilian (Middle Ordovician) graptolites from the northern margin of the Qaidam Basin (Qinghai, China) [PDF]
Estonian Journal of Earth Sciences, 2023 A restudy of the early Darriwilian graptolites from the Dameigou section in the Qaidam Basin provides some new information for graptolite biostratigraphy.
Liting Deng, Ming Li, Mo Huang
doaj +1 more source
The Checa Silurian Section, an Outstanding Fossil Site in the Molina-Alto Tajo UNESCO Global Geopark, Spain [PDF]
Geoconservation Research, 2021 The Paleozoic succession in the Nevera inlier of the Molina-Alto Tajo UNESCO Global Geopark (Western Iberian Cordillera, NE Spain) includes an incomplete, richly fossiliferous Silurian succession, ca. 350‒400 m thick, at the locality of Checa, one of the
Juan Carlos Gutierrez-Marco, Petr Storch
doaj +1 more source
Energies, 2022 The shale gas exploration of the Longmaxi Formation in the Yangtze Region of China has made a significant breakthrough. As an important hydrocarbon generation organism, graptolite is widely distributed in the Longmaxi Formation shales, but its ...
Wenhao Li +3 more
doaj +1 more source