吉林延邊地區(qū)早白堊世尼爾桑羽葉及其地質(zhì)分布
發(fā)布時(shí)間：2019-07-03 18:07
【摘要】：延邊朝鮮族自治州地處吉林省東部邊疆近海地區(qū),東與俄羅斯接壤,南與朝鮮相鄰。延吉盆地內(nèi)中生代陸相地層發(fā)育,含有大量的煤炭和油頁(yè)巖,是研究我國(guó)東北白堊紀(jì)早期陸相地層、植被和環(huán)境變化的熱點(diǎn)地區(qū)之一。下白堊統(tǒng)長(zhǎng)財(cái)組植物化石豐富,自2005年吉林大學(xué)研究團(tuán)隊(duì)報(bào)道了研究區(qū)下白堊統(tǒng)長(zhǎng)財(cái)組的大量化石,包括蕨類(lèi)11屬23種、本內(nèi)蘇鐵類(lèi)2屬5種、蘇鐵類(lèi)2屬6種、銀杏類(lèi)3屬7種、茨康類(lèi)2屬3種、松柏類(lèi)10屬19種。為進(jìn)一步確定長(zhǎng)財(cái)組植物化石產(chǎn)出層位的地質(zhì)年代,本文對(duì)吉林省延邊州和龍市福洞鎮(zhèn)泉水村組底部(原稱(chēng)福洞組)安山巖進(jìn)行了采樣和測(cè)年工作,測(cè)定結(jié)果為115.0±1.7Ma(MSWD=1.7),相當(dāng)于阿普特晚期。結(jié)合尹殿奎(2008)在吉林延邊州延吉市三道灣鎮(zhèn)三道灣煤礦長(zhǎng)財(cái)組下伏地層屯田營(yíng)組頂部安山巖年齡(125.1±2.7Ma)和Sun et al.(2010,2016)在吉林延邊州和龍市龍城鎮(zhèn)福興村興旺煤礦長(zhǎng)財(cái)組上覆地層泉水村組底部安山巖年齡(116.8±1.4Ma),綜合動(dòng)、植物化石以及孢粉組合,最終確定長(zhǎng)財(cái)組地質(zhì)時(shí)代屬于阿普特早-中期。吉林延邊朝鮮族自治州的下白堊統(tǒng)長(zhǎng)財(cái)組產(chǎn)有較為豐富的本內(nèi)蘇鐵類(lèi)化石,本文所描述的化石采自吉林省延邊朝鮮族自治州和龍市長(zhǎng)財(cái)煤礦、春洞煤礦、南陽(yáng)煤礦和春陽(yáng)煤礦的下白堊統(tǒng)長(zhǎng)財(cái)組地層中。通過(guò)化石角質(zhì)層實(shí)驗(yàn),本次工作共鑒定尼爾桑羽葉化石4種(包括1個(gè)新種),分別為:長(zhǎng)財(cái)尼爾桑羽葉(新種)Nilssoniopteris changcaiensis Sun et Li(sp.nov.),長(zhǎng)葉尼爾桑羽葉Nilssoniopteris longifolia Doludenko,普里納達(dá)尼爾桑羽葉Nilssoniopteris prynadae Samylina,平軸尼爾桑羽葉Nilssoniopteris platyrachis(Samylina)Wei et Sun。其中,Nilssoniopteris changcaiensis Sun et Li(sp.nov.)(登記號(hào)JLC0718049)以其長(zhǎng)帶狀葉片、葉脈細(xì)密、氣孔密度小、氣孔器較大、孔縫短等特征,區(qū)別于屬內(nèi)各已知種。本內(nèi)蘇鐵是中生代植物群中的重要分子。尼爾桑羽葉屬(Nilssoniopteris)主要分布在東格陵蘭、美國(guó)、俄羅斯、日本、中國(guó)等地,以中侏羅世和早白堊世最為繁盛。目前,已知的中生代Nilssoniopteris化石達(dá)37種,除了個(gè)別屬種因缺乏表皮構(gòu)造而存疑外,絕大多數(shù)報(bào)道的化石確系屬于Nilssoniopteris。為了查明尼爾桑羽葉的地質(zhì)地理分布,本文將各時(shí)期已知的Nilssoniopteris化石屬種的化石產(chǎn)地置于全球古地理圖中進(jìn)行分析。研究表明,尼爾桑羽葉屬?gòu)耐砣B世到早白堊世,具有自低緯度熱帶區(qū)向中緯度暖溫帶區(qū)遷移的特征。該屬種的北移,與從晚三疊世到早白堊世氣候總體變暖有關(guān)。中生代期間尼爾桑羽葉屬大多分布在潮濕氣候帶,少數(shù)分布在干旱帶。隨著晚白堊世氣溫的下降,本屬植物逐漸衰退,殘存于低緯度區(qū)的捷克。至晚白堊世末期最終絕滅。植物的氣孔是與大氣直接進(jìn)行氣體交換并進(jìn)行光合作用和呼吸作用的場(chǎng)所,植物利用氣孔吸收大氣的二氧化碳進(jìn)行光合作用。因此,植物的氣孔參數(shù)被認(rèn)為是對(duì)古大氣二氧化碳濃度變化最為敏感的響應(yīng),被眾多學(xué)者用來(lái)重建古大氣二氧化碳濃度。目前,被用來(lái)進(jìn)行重建的植物化石主要為銀杏類(lèi)、松柏類(lèi)和被子植物等。氣孔比率法重建古大氣二氧化碳的基礎(chǔ)是要已知現(xiàn)生最近親緣種的氣孔參數(shù),為此,本文選取貴州蘇鐵作為尼爾桑羽葉的現(xiàn)代親緣種。通過(guò)對(duì)貴州蘇鐵8個(gè)葉片的67個(gè)片段的表皮研究,獲得其氣孔密度為80.58±7.56個(gè)/mm2、表皮細(xì)胞密度為1112.52±119.92個(gè)/mm2、計(jì)算得出氣孔指數(shù)(SI)為6.84±0.83。在此基礎(chǔ)上,本文對(duì)延邊地區(qū)下白堊統(tǒng)長(zhǎng)財(cái)組3個(gè)產(chǎn)地的長(zhǎng)葉尼爾桑羽葉(Nilssoniopteris longifolia Doludenko)和普里納達(dá)尼爾桑羽葉(Nilssoniopteris prynadae Samylina)化石的葉表皮氣孔參數(shù)進(jìn)行了研究,分別獲得其氣孔指數(shù)為7.20±0.77,12.06±0.63和15.11±1.79,氣孔比率分別為0.956±0.078,0.632±0.093和0.457±0.046。參考同產(chǎn)地同層位通過(guò)銀杏化石的古大氣二氧化碳濃度重建結(jié)果(Sun et al.,2016),嘗試?yán)?SR=4RCO_2=1200ppmv,估測(cè)出吉林延邊地區(qū)長(zhǎng)財(cái)組的古大氣二氧化碳濃度為548.6±55.0ppmv~1147.6±94.0 ppmv,為古氣候的重建提供了新的材料和思路。
[Abstract]:Yanbian Korean Autonomous Prefecture is located in the coastal area of the eastern frontier of Jilin Province, and is adjacent to Russia and is adjacent to Korea. The development of Mesozoic continental strata in Yanji basin, which contains a large amount of coal and oil shale, is one of the hot spots to study the changes of continental strata, vegetation and environment in the early Cretaceous in the northeast of China. The plant fossils of the Lower Cretaceous are abundant. Since 2005, the study team of Jilin University reported a large number of fossils of the Lower Cretaceous in the study area, including 23 genera,23 species,2 genera,5 species,2 genera,6 species,7 Ginkgo,3 species,2 genera,3 species, The 10 genera of the 10 genera of the pine are 10 genera and 19 species. In order to further determine the geological age of the fossil output horizon of the long-term plant, this paper carried out the sampling and the measurement of Anshan-rock at the bottom of the spring-water village in Yanbian and Longgang of Jilin Province (originally called the Fudong Formation), and the result is 115.0-1.7 Ma (MSWD = 1.7), which is equivalent to the late Apt. In combination with Yin Dian (2008), the top AnShan Rock Age (125.1-2.7Ma) and Sun et al. (2010,2016) at the top of the Group of Sandowan Coal Mine in Yanji City, Yanji City, Jilin Province, and Sun et al. (2010,2016) are located at the bottom of the formation spring village group at the bottom of the formation spring village group on the long-income group of Fuxing Village, Yanbian and Longyou, Jilin Province. The age of rock (116.8-1.4 Ma), comprehensive movement, plant fossils and sporo-pollen assemblages, and finally determined that the geological age of the long-income group belongs to the early-mid-term of Apt. In the Lower Cretaceous, the Lower Cretaceous of the Korean Autonomous Prefecture of Yanbian of Jilin Province is rich in this fossil. The fossils described in this paper are collected from the lower Cretaceous long-and-middle-income formation of the Yanbian Korean Autonomous Prefecture of Jilin Province and the Longyou Coal Mine, the Chundong Coal Mine, the Nanyang Coal Mine and the Chunyang Coal Mine. The four species (including 1 new species) of Nilsdoniopteris changecaiensis Sun et Li (sp.nov.), Nilsdoniopteris longifloia Doludenko, and Nilsdoniopteris prynadae Samylina, a new species of Nilsdoniopteris changcaiensis, Nilsdoniopteris changcaiensis Sun et Li (sp.nov.) (accession number JLC0718049) is characterized by its long strip-shaped blade, fine leaf vein, small air-hole density, large air-hole, short hole and so on, which is distinguished from the known species in the genus. This iron is an important molecule in the Mesozoic flora. The Nilstheniopteris is mainly distributed in East Greenland, the United States, Russia, Japan, China and so on. At present,37 species of the Mesozoic Nilsdoniopteris fossil are known, and most of the reported fossils belong to the Nilsdoniopteris in addition to the fact that the individual species are suspected of lack of epidermal construction. In order to find out the geographical distribution of Nil's pinna, this paper makes an analysis of the fossil origin of the Nilssoniopteris fossil species, which is known in various times, in the global palaeo-geographical map. The study shows that the Nil's pinnate is from the late Triassic to the early cretaceous, and has the characteristics of migrating from the low-latitude tropical region to the middle-latitude warm temperate zone. The northern movement of the species is related to the global warming from the late Triassic to the Early Cretaceous. In the Mesozoic period, the genus Neill is mostly distributed in the humid climate zone, and a few are distributed in the arid zone. As the temperature of the late cretaceous temperature decreased, the plant gradually declined and remained in the Czech in the low-latitude area. At the end of the late cretaceous. The air hole of the plant is the place where the air is directly exchanged with the atmosphere and the photosynthesis and respiration are carried out, and the plant uses the air holes to absorb the carbon dioxide of the atmosphere for photosynthesis. Therefore, the stomatal parameters of plants are considered to be the most sensitive response to the changes in the concentration of carbon dioxide in the ancient atmosphere, and are used by many scholars to reconstruct the concentration of carbon dioxide in the old atmosphere. At present, the plant fossil used for reconstruction mainly is the ginkgo, the pine and the angiosperm. The air-hole ratio method is used to reconstruct the paleoatmospheric carbon dioxide, which is based on the known stomatal parameters of the nearest species. The stomatal density was 80.58-7.56/ mm2, and the density of epidermal cells was 1112.52-119.92/ mm2, and the stomatal index (SI) was 6.84-0.83. The stomatal parameters of the leaves of Nilsdoniopteris longifloia Doludenko and Nilsdoniopteris prynadae Samylina were studied. The stomatal index was 7.20-0.77, 12.06-0.63 and 15.11-1.79, respectively. The stomatal ratio was 0.956, 0.078, 0.632, 0.093 and 0.457-0.046, respectively. Based on the results of the re-establishment of the concentration of the paleoatmospheric CO _ 2 (Sun et al.,2016) from the same place in the same place, the concentration of the paleoatmospheric carbon dioxide in the long-income group in the Yanbian area of Jilin is estimated to be 548.6-55.0 ppmv-1147.6-94.0 ppmv, and the new materials and ideas are provided for the reconstruction of the paleoclimate.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：Q914
本文編號(hào)：2509577
[Abstract]:Yanbian Korean Autonomous Prefecture is located in the coastal area of the eastern frontier of Jilin Province, and is adjacent to Russia and is adjacent to Korea. The development of Mesozoic continental strata in Yanji basin, which contains a large amount of coal and oil shale, is one of the hot spots to study the changes of continental strata, vegetation and environment in the early Cretaceous in the northeast of China. The plant fossils of the Lower Cretaceous are abundant. Since 2005, the study team of Jilin University reported a large number of fossils of the Lower Cretaceous in the study area, including 23 genera,23 species,2 genera,5 species,2 genera,6 species,7 Ginkgo,3 species,2 genera,3 species, The 10 genera of the 10 genera of the pine are 10 genera and 19 species. In order to further determine the geological age of the fossil output horizon of the long-term plant, this paper carried out the sampling and the measurement of Anshan-rock at the bottom of the spring-water village in Yanbian and Longgang of Jilin Province (originally called the Fudong Formation), and the result is 115.0-1.7 Ma (MSWD = 1.7), which is equivalent to the late Apt. In combination with Yin Dian (2008), the top AnShan Rock Age (125.1-2.7Ma) and Sun et al. (2010,2016) at the top of the Group of Sandowan Coal Mine in Yanji City, Yanji City, Jilin Province, and Sun et al. (2010,2016) are located at the bottom of the formation spring village group at the bottom of the formation spring village group on the long-income group of Fuxing Village, Yanbian and Longyou, Jilin Province. The age of rock (116.8-1.4 Ma), comprehensive movement, plant fossils and sporo-pollen assemblages, and finally determined that the geological age of the long-income group belongs to the early-mid-term of Apt. In the Lower Cretaceous, the Lower Cretaceous of the Korean Autonomous Prefecture of Yanbian of Jilin Province is rich in this fossil. The fossils described in this paper are collected from the lower Cretaceous long-and-middle-income formation of the Yanbian Korean Autonomous Prefecture of Jilin Province and the Longyou Coal Mine, the Chundong Coal Mine, the Nanyang Coal Mine and the Chunyang Coal Mine. The four species (including 1 new species) of Nilsdoniopteris changecaiensis Sun et Li (sp.nov.), Nilsdoniopteris longifloia Doludenko, and Nilsdoniopteris prynadae Samylina, a new species of Nilsdoniopteris changcaiensis, Nilsdoniopteris changcaiensis Sun et Li (sp.nov.) (accession number JLC0718049) is characterized by its long strip-shaped blade, fine leaf vein, small air-hole density, large air-hole, short hole and so on, which is distinguished from the known species in the genus. This iron is an important molecule in the Mesozoic flora. The Nilstheniopteris is mainly distributed in East Greenland, the United States, Russia, Japan, China and so on. At present,37 species of the Mesozoic Nilsdoniopteris fossil are known, and most of the reported fossils belong to the Nilsdoniopteris in addition to the fact that the individual species are suspected of lack of epidermal construction. In order to find out the geographical distribution of Nil's pinna, this paper makes an analysis of the fossil origin of the Nilssoniopteris fossil species, which is known in various times, in the global palaeo-geographical map. The study shows that the Nil's pinnate is from the late Triassic to the early cretaceous, and has the characteristics of migrating from the low-latitude tropical region to the middle-latitude warm temperate zone. The northern movement of the species is related to the global warming from the late Triassic to the Early Cretaceous. In the Mesozoic period, the genus Neill is mostly distributed in the humid climate zone, and a few are distributed in the arid zone. As the temperature of the late cretaceous temperature decreased, the plant gradually declined and remained in the Czech in the low-latitude area. At the end of the late cretaceous. The air hole of the plant is the place where the air is directly exchanged with the atmosphere and the photosynthesis and respiration are carried out, and the plant uses the air holes to absorb the carbon dioxide of the atmosphere for photosynthesis. Therefore, the stomatal parameters of plants are considered to be the most sensitive response to the changes in the concentration of carbon dioxide in the ancient atmosphere, and are used by many scholars to reconstruct the concentration of carbon dioxide in the old atmosphere. At present, the plant fossil used for reconstruction mainly is the ginkgo, the pine and the angiosperm. The air-hole ratio method is used to reconstruct the paleoatmospheric carbon dioxide, which is based on the known stomatal parameters of the nearest species. The stomatal density was 80.58-7.56/ mm2, and the density of epidermal cells was 1112.52-119.92/ mm2, and the stomatal index (SI) was 6.84-0.83. The stomatal parameters of the leaves of Nilsdoniopteris longifloia Doludenko and Nilsdoniopteris prynadae Samylina were studied. The stomatal index was 7.20-0.77, 12.06-0.63 and 15.11-1.79, respectively. The stomatal ratio was 0.956, 0.078, 0.632, 0.093 and 0.457-0.046, respectively. Based on the results of the re-establishment of the concentration of the paleoatmospheric CO _ 2 (Sun et al.,2016) from the same place in the same place, the concentration of the paleoatmospheric carbon dioxide in the long-income group in the Yanbian area of Jilin is estimated to be 548.6-55.0 ppmv-1147.6-94.0 ppmv, and the new materials and ideas are provided for the reconstruction of the paleoclimate.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：Q914
【相似文獻(xiàn)】
相關(guān)期刊論文 前2條
1 楊忠習(xí);唐立晶;王舉;鄒德友;;延吉和龍盆地長(zhǎng)財(cái)組沉積與聚煤特征[J];吉林地質(zhì);2006年01期
2 魏文艷,孫躍武,汪譽(yù)新;吉林延邊地區(qū)早白堊世長(zhǎng)財(cái)組的蕉羽蕨葉(Nilssoniopteris)[J];世界地質(zhì);2005年01期
相關(guān)會(huì)議論文 前1條
1 孫躍武;萬(wàn)傳彪;葛文春;陳躍軍;王清海;劉歡;魏文燕;汪譽(yù)新;趙國(guó)偉;;吉林延邊地區(qū)早白堊世長(zhǎng)財(cái)組的時(shí)代及其對(duì)晚中生代火山巖年代格架的約束[A];中國(guó)古生物學(xué)會(huì)第十次全國(guó)會(huì)員代表大會(huì)暨第25屆學(xué)術(shù)年會(huì)——紀(jì)念中國(guó)古生物學(xué)會(huì)成立80周年論文摘要集[C];2009年
相關(guān)博士學(xué)位論文 前1條
1 尹殿奎;吉林延邊地區(qū)早白堊世長(zhǎng)財(cái)組的蕨類(lèi)植物[D];吉林大學(xué);2008年
相關(guān)碩士學(xué)位論文 前5條
1 高寧寧;松江盆地構(gòu)造演化與中生界油氣成藏潛力分析[D];吉林大學(xué);2016年
2 李想;吉林延邊地區(qū)早白堊世尼爾桑羽葉及其地質(zhì)分布[D];吉林大學(xué);2017年
3 趙國(guó)偉;吉林延邊地區(qū)早白堊世長(zhǎng)財(cái)組松柏類(lèi)化石[D];吉林大學(xué);2009年
4 雷聰聰;吉林延邊和龍地區(qū)中生代構(gòu)造演化[D];吉林大學(xué);2015年
5 汪譽(yù)新;吉林延邊地區(qū)早白堊世長(zhǎng)財(cái)組銀杏類(lèi)及茨康類(lèi)[D];吉林大學(xué);2005年
，本文編號(hào)：2509577
本文鏈接：http://sikaile.net/kejilunwen/diqiudizhi/2509577.html
最近更新
教材專(zhuān)著
