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贵州寒武系凯里组卢氏中国始海百合骨片微观结构研究

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微体古生物学报（中英文） 2024年第3期41卷 193-203页

作者：余秀程兰天赵元龙贵州大学资源与环境工程学院喀斯特地质资源与环境教育部重点实验室贵阳550025

始海百合是海蕾亚门棘皮动物中最古老的类群,这一类群在形态结构上与有柄亚门(Pelmatozoa)的海百合有诸多相似,目前对于始海百合腕枝结构的研究主要集中在宏观结构层面,而对腕枝骨片微观结构(Stereom)的研究较少。本文基于现代棘皮动物... 详细信息

始海百合是海蕾亚门棘皮动物中最古老的类群,这一类群在形态结构上与有柄亚门(Pelmatozoa)的海百合有诸多相似,目前对于始海百合腕枝结构的研究主要集中在宏观结构层面,而对腕枝骨片微观结构(Stereom)的研究较少。本文基于现代棘皮动物骨片微观结构和填充软组织的性质之间的普遍联系,通过扫描电子显微镜及阴极发光显微镜所采集的图像揭示了始海百合腕枝及萼板的骨片微观结构。研究发现始海百合萼板由粗糙的迷宫状骨骼组成,而腕枝盖板主要由廊状骨骼构成;底板则由迷宫状骨骼以及腕枝骨板缝隙间的廊状骨骼构成;结合现生棘皮动物结构及前人研究,笔者推测廊状骨骼是胶原组织的附着区域,从而揭示出卢氏中国始海百合(Sinoeocrinus lui)的腕枝关节面之间可能附着有胶原组织,进而影响腕枝的运动能力。这些结果证明,骨片微观结构研究对于还原棘皮动物已灭绝类群的身体结构具有重要作用,并为Sinoeocrinus lui的生活方式提供了新的见解。

关键词：棘皮动物始海百合骨片微观结构寒武纪

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食品级氯化钾制取工艺技术研究

盐科学与化工 2024年第9期53卷 36-38页

作者：赵元龙青海盐湖工业股份有限公司青海格尔木816099

文章以青海盐湖工业股份有限公司兑卤法生产的氯化钾为原料,通过尝试利用吸附、蒸发等技术方法,验证效果显著且经济实用的除胺工艺,最终制备出食品级氯化钾。

关键词：兑卤法食品级氯化钾除胺

New Bivalved Arthropods from Mid-Cambrian Kaili Biota of Southeastern Guizhou,Southwest China

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Acta Geologica Sinica(English Edition) 2011年第4期85卷 758-764页

作者： YUAN Jinliang PENG Jin zhao yuanlong Nanjing Institute of Geology and Palaeontology Chinese Academy of SciencesNanjing 210008China College of Resource and Environment Engineering Guizhou UniversityGuiyang 550003China

Bivalved arthropods are very important elements in Mid-Cambrian Kaili *** genera,Alicaris,Pseudoarctolepis,and Forfexicaris,are herein recorded for the first time,including three new species：Alicaris kailiensis ***.,Forfexicaris reticulata ***.,and Pseudoarctolepis semicircularis ***.,of which Alicaris kailiensis *** be assigned to crustaceomorphs;the other two forms are grouped as *** forms provide important information about the distribution and species diversity of a poorly-known element of Cambrian fauna,and also bridge the biotic evolutionary gap between Early Cambrian Chengjiang Biota in Southwest China and Mid-Cambrian burgess shale biota in North America.

关键词： Alicaris Pseudoarctolepis Forfexicaris Kaili Biota Mid-Cambrian Guizhou

Comparison between cryptospores from the Cambrian Log Cabin Member,Pioche Shale,Nevada,USA and similar specimens from the Cambrian Kaili Formation,Guizhou,China

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Science China Earth Sciences 2013年第5期56卷 703-709页

作者： YIN LeiMing zhao yuanlong BIAN LiZeng PENG Jin Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences College of Resource and Environmental Engineering of Guizhou University School of Earth Sciences and Engineering Nanjing University

cryptospore-like microfossils have been collected from a sample of the ＂Middle＂ Cambrian Log Cabin Member of the Pioche Shale in eastern Nevada, USA. Compared with organic-walled microfossils obtained from the Cambrian Kaili Formation in eastern Guizhou Province, China, some specimens of leiosphers may be inferred to be similar cryptospore-like microfossils. The new fossil record would be the oldest known specimens of cryptospore-like microfossils during the Cambrian Period.

关键词： cryptospore-like microfossils Cambrian Log Cabin Member Kaili Formation

Early–Middle Cambrian Palynomorph Microfossils and Related Geochemical Events in South China

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Journal of Earth Science 2016年第2期27卷 180-186页

作者： Leiming Yin Chunjiang Wang yuanlong zhao Zhiji Ou State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences 39 East Beijing Road Nanjing 210008 China State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China College of Resource and Environment of Guizhou University Guiyang 550003 China

The earliest Cambrian acritarch ＇Asteridium-Heliosphaeridium-Comasphaeridium＇ assemblage and the Early Cambrian（＇Chiungchussuan＇） acritarch ＇Skiagia ornate-Fimbriaglomerella membranacea＇ assemblage in South China can be correlated with assemblages from synchronous strata elsewhere in the world. Recent geochemical study and biomarker evidence further confirm a biostratigraphic change between Cambrian Series 2 and Series 3 and support the recognition of a major geological and biotic event during this time interval.

关键词： Early-Middle Cambrian acritarchs geochemistry South China.

New macroalgal fossils of the Kaili Biota in Guizhou Province, China

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Science China Earth Sciences 2011年第1期54卷 93-100页

作者： WU MengYin zhao yuanlong TONG JinNan YANG RuiDong Key Laboratory of Biogeology and Environmental Geology of Ministry of Education China University of Geosciences Wuhan 430074 China Department of Political Education Guiyang College Guiyang 550005 China College of Resource and Environment Guizhou University Guiyang 550004 China Key Laboratory of Karst Environment and Geohazard Prevention of Ministry of Education Guizhou University Guiyang 550004 China

The Kaili Biota of Jianhe County, Guizhou Province is found in a Burgess Shale type of deposits, and as such it provides a key fossil record for studying biotic differentiation following the Cambrian explosion. Macroalgae represent several important groups of primary producers and yet have not been well studied. Here, we report two new forms of macroalgae from the Kaili Biota, including a new genus and species and an indeterminate genus and species. The new genus and species, Parallelphyton tipica, is a heterotrichous alga with thalli composed of a prostrate cardinal axis, and parallel bundles of erect trichomes on the axis. The bifurcation of the trichomes is somewhat similar to the living heterotrichous Fritschiella （Chlorophyta）, representing ＂architectonic differentiation＂ only known in higher plants as an adaptation to terrestri~ conditions. The indeterminate genus and species consists of an arched, thick, cylindrical major shaft and irregularly spaced, curved lateral branches attached to the major shaft and subdivided into subbranches. The characteristics of the thick and strong major shaft and the lateral branch subdivided branches are analogous to the dichotomous branching of Psilophyton in Protopteridophyta. Thus, the differentiation of the thalli in these two algal forms represents the expression of properties of some higher metaphytes, indicating that the eco- logical differentiation of the macroalgae was well underway at the time of the Kaili Biota.

关键词： Cambrian Kaili Biota macroalgae ecological differentiation Guizhou

Geochemistry of the trace elements and rare-earth elements at the boundary between Cambrian Series 2 and Series 3 at Jianshan,South China:Paleoenvironmental and stratigraphic implications

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Chinese Journal Of Geochemistry 2012年第4期31卷 465-475页

作者： YANG Xinglian zhao yuanlong GUO Qingjun YANG Hong College of Resource and Environment Guizhou UniversityGuiyang 550003China State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China Center of Environmental Remediation Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China

The Jianshan section in Jianhe County,Guizhou Province,is a very important auxiliary section to the candidate stratotype at the boundary between Cambrian Series 2 and Series *** four samples collected from the Jianshan section of the Kaili Formation were analyzed for the concentrations of trace element and rare-earth elements(REEs) by inductively coupled plasma mass *** trace element and REE geochemical characteristics of the Kaili Formation at the Jianshan section show that trace element composition and REE distribution patterns across the section are ***,at 44 m above the base of the Kaili Formation,most trace element contents and REEs concentrations are lower than those values observed below 44 *** 44 m,an increasing trend in the concentration of both trace elements and REEs is *** geochemical data indicate important,but subtle,changes at the 44 m *** this is,in fact,verified by work in progress,geochemical criteria can provide additional supports for defining the top surface of Cambrian Series 2,especially in sections where Oryctocephalus indicus is *** element ratios,specifically Ni/Co,V/Cr,V/(Ni+V) and Th/U as well as Ce and Eu anomalies indicate that the sedimentary environment of the Kaili Formation at the Jianshan section was oxidizing,that benthic redox conditions were less oxic,and may have been influenced by freshwater as compared to the Balang ***,the Eu anomalies observed in the Kaili Formation are similar to the negative Eu anomalies observed in post-Archean sedimentary rocks,and reveal fluctuations in oxygen content from the bottom to the top of the Kaili Formation.

关键词：稀土元素地球化学特征微量元素组成寒武系电感耦合等离子体质谱法边界古环境剖面显示地层

Influences of Some Impurities on the Optical Transparency of Doped Bismuth Germanate Crystals

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Chinese Physics Letters 1991年第5期8卷 248-250页

作者： HU Guanqin FENG Xiqi HUA Sukun zhao yuanlong Shanghai Institute of Ceramics Academia SinicaShanghai 201080

Optical microscopy,optical transmission spectra,sweep electron microscope,electron microprobe analysis *** used to study the appearance and machanism of formation of the defects caused by impurities which seriously affect the optical transparency of doped bismuth *** methods of improving the optical transparency were also discussed.

关键词： transparency microprobe bismuth

Dinomischus from the Middle Cambrian Kaili Biota, Guizhou, China

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Acta Geologica Sinica(English Edition) 2006年第4期80卷 498-501页

作者： PENG Jin zhao yuanlong LIN Jih-Pai College of Resource and Environment Engineering Guizhou University Guiyang Guizhou 550003 China State Key Laboratory Palaeobiology and Stratigraphy （NIGP. CAS） Nanjing Jiangsu 210008 China Department of Geological Sciences Ohio State University Columbus OH43210 USA

Dinomischus is a rare solitary epifaunal suspension feeder. The over-all morphology of Dinomischus consists of a conical calyx surrounded with elongate bracts and an elongate stem. Visceral mass and stomach sac are evident in the body cavity. Dinomischus is interpreted as a primative ancestor of living entoprocts based on similarities in morphology and mode of life. Previously, Dinomischus is only known in two localities： the mid-Middle Cambrian Burgess Shale Biota and the Early Cambrian Chengjiang Biota. A single specimen of Dinomischus cf. D. isolatus Cowry Morris, 1977 from the Kaili Biota, Guizhou, China is reported here. The discovery of Dinomischus in the Kaili Biota extends its geographical range and indicated that the rare Dinomischus could tolerate deeper water settings during the Middle Cambrian.

关键词： Dinomischus Kaili Biota Middle Cambrian Guizhou China