Foraminiferal diversity and taxa richness from beds transitional between the Asbian and Brigantian substages (Middle Mississippian) show patterns of secular change which allow detailed inter-regional correlations to be established. Foraminifera from the Askrigg Block, Stainmore Trough, Alston Block, South Cumbria Shelf and Solway Basin show similar secular changes (foraminiferal trends, FTs), allowing correlation to be made with the basal Brigantian Stratotype at Janny Wood. Despite the absence of consistent microfossil first occurrence markers for the recognition of the base of the Brigantian, this horizon can be confidently recognized by means of foraminiferal trends. The FTs allow the precise location of the base of the correlated Brigantian in sections where this boundary was questioned or controversial in previous studies, as well as to amend the position of the foraminiferal zones and subzones during the late Asbian and basal Brigantian. This type of analysis when used in combination with foraminiferal zonations, emergent surfaces and lithological cyclicity, together, provide a robust means for high-resolution correlation. This methodology, provides the least uncertainty in sections that have been most densely sampled, whereas for less intensely sampled sections there is more correlation uncertainty.

Pedro Cózar

Ismael Coronado

Ian D. Somerville

Mark W. Hounslow

Proceedings of the Yorkshire Geological Society

《约克郡地质学会会刊》（PYGS）自 1839 年以来一直不间断出版。它是英国地质学的主要期刊之一。每年都会发行两部分，其中包含有关地质各个方面的原始研究论文。传统上，会议记录特别关注英格兰北部及其邻近地区的地质情况。鼓励提交有关相关主题但具有更普遍兴趣的论文。所有论文都经过两名独立裁判的全面审查。

The Proceedings of the Yorkshire Geological Society (PYGS) has been published continuously since 1839 and is one of the leading journals in the field of geology in the UK. The journal releases two issues each year, featuring original research papers covering various aspects of geology. The conference proceedings particularly focus on the geological conditions of Northern England and its surrounding areas, while also encouraging submissions on related topics of broader interest. All submitted papers undergo thorough review by two independent referees.

《Proceedings of the Yorkshire Geological Society》（PYGS）自1839年起持续出版，是英国地质学领域的重要期刊之一。该期刊每年发行两期，涵盖地质学各个方面的原创研究论文。会议记录部分特别关注英格兰北部及其邻近地区的地质情况，同时也鼓励提交与相关主题但具有更广泛兴趣的论文。所有提交的论文均经过两名独立审稿人的严格评审。

High-resolution definition and correlation of the Asbian–Brigantian boundary in northern England and the Scottish borders, using foraminiferal diversity and richness

Category	Quartile
地球科学	4
地球科学, 地质学	4

High-resolution definition and correlation of the Asbian–Brigantian boundary in northern England and the Scottish borders, using foraminiferal diversity and richness

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