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Lower Cretaceous Angiosperms [PDF]

open access: yesNature, 1910
IN the course of my work at the British Museum on Cretaceous plants, I have examined a number of more or less perfectly petrified “woods.” Such specimens have generally been classed together as “Gymnosperms,” so that they have received little attention from palaeobotanists. As I am undertaking an exhaustive study of the Cretaceous plants, the keeper of
M. Stopes
openaire   +2 more sources

Lower Cretaceous Carbonate Beaches: ABSTRACT

open access: hybridAAPG Bulletin, 1972
Several carbonate beach sequences have been recognized and studied in Lower Cretaceous shallow-marine shelf limestones of the Edwards Formation, Central and West Texas. These sandstone bodies are local features associated with exposed insular areas developed in response to remnant structural features combined with biologic and normal sedimentologic ...
C. H. Moore
openaire   +2 more sources

Revision of the Tribe Xyelini (Hymenoptera: Xyelidae) and New Fossil Records from the Lower Cretaceous of Liaoning Province, China [PDF]

open access: yesInsects
Three new species—Enneoxyela aculeata sp. nov., Enneoxyela eucalla sp. nov., and Hemixyela elongata gen. et sp. nov.—are described and illustrated from the Lower Cretaceous Yixian Formation at Huangbanjigou, Liaoning Province, China.
Xiaoqin Li   +2 more
doaj   +2 more sources

Lower Cretaceous (Hauterivian-Albian) ammonite biostratigraphy in the Maestrat Basin (E Spain) [PDF]

open access: yes, 2014
Peer reviewedPublisher ...
Bover-Arnal, T.   +11 more
core   +2 more sources

Palynofacies and Palaeoenvironment of the Sanganeh Formation, East and the Center of the Kopet-Dagh Basin [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2021
In order to identify the palynofacies and to reconstruct the paleoenvironment of the Lower Cretaceous depositions in the Kopet-Dagh sedimentary basin, the Sanganeh Formation was sampled and studied.
Narges Shokri   +2 more
doaj   +1 more source

Study of microfacies and interpretation of sedimentary environment of the Lower Cretaceous succession at Markesh Mountain in the north of Ravar [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2021
Lower Cretaceous deposits are outcropped in the Markesh Mountain, 15 km north of Ravar (Kerman Province), with a thickness of 143 m, and this section includes intercalation of gypsiferous marls, thin-bedded limestones, thin- to medium-bedded limestones ...
Madineh Kiani shahvandi   +1 more
doaj   +1 more source

Uranium metallogenic model of the Lower Cretaceous in the northern Ordos Basin

open access: yes地质科技通报, 2023
Since 2019, major breakthroughs have been made in the prospecting of the Lower Cretaceous sandstone-type uranium deposits in the northern Ordos Basin.
Longhui Wang   +8 more
doaj   +1 more source

Characterization of the Lower Cretaceous Shale in Lishu Fault Depression, Southeastern Songliao Basin: Implications for Shale Gas Resources Potential

open access: yesEnergies, 2022
Large thickness of shales over 180.0 m was developed in the source rocks of the Shahezi and Yingcheng formations in the Lishu Fault Depression. Moreover, the high amount of gas content and the total hydrocarbon value of gas logging in several boreholes ...
Qilai Xie, Hao Xu, Shuang Yu
doaj   +1 more source

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