Pub Date : 1998-01-01DOI: 10.1080/03115519808619201
R. B. Rickards, A. Wright, J. Pemberton
New finds of graptolites in the Cudgegong district, N.S.W., indicate a Bo3 (mid-Bolindian: Late Ordovician) age for the upper part of the Sofala Volcanics and an early Pridoli (Late Silurian) age for the upper part of the Willow Glen Formation. The Silurian graptolite is described as Monograptus parultimus minutus subsp. nov. Integration of the new biostratigraphic data with SHRIMP ages for volcanic units in the Cudgegong sequence supports an age of 410 Ma for the Silurian-Devonian boundary.
{"title":"Graptolite evidence for the ages of the Sofala Volcanics and Willow Glen Formation, northern capertee high, N.S.W.","authors":"R. B. Rickards, A. Wright, J. Pemberton","doi":"10.1080/03115519808619201","DOIUrl":"https://doi.org/10.1080/03115519808619201","url":null,"abstract":"New finds of graptolites in the Cudgegong district, N.S.W., indicate a Bo3 (mid-Bolindian: Late Ordovician) age for the upper part of the Sofala Volcanics and an early Pridoli (Late Silurian) age for the upper part of the Willow Glen Formation. The Silurian graptolite is described as Monograptus parultimus minutus subsp. nov. Integration of the new biostratigraphic data with SHRIMP ages for volcanic units in the Cudgegong sequence supports an age of 410 Ma for the Silurian-Devonian boundary.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"89 1","pages":"223-230"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619196
R. Baird, P. Vickers-Rich
Skeletal elements of the extinct family Palaelodidae have only been recorded from Australia since 1982. We describe Palaelodus pledgei n. sp. and P. wilsoni n. sp., two new species of palaelodid from Cooper Creek, and Lakes Palankarinna, Pinpa and Yanda in northern South Australia. The material differs from European species in both mensural and morphological characters and constitutes the smallest and the largest species in the genus. These species clearly belong in the genus Palaelodus, rather than Megapaloelodus, based upon the gracile nature of the elements. Palaelodus wilsoni extends the chronological range of the family to the Middle Pleistocene. Owing to differences in the European and Australian species the material is considered to be of little use in intercontinental correlation. Palaeoenvironmental factors responsible for the extinction of the Palaelodidae in Australia may be similar to those speculated for the Phoenicopteridae, namely the loss of lake full levels at the end of the Pleistocene, ...
早在1982年,已经灭绝的古猿科的骨骼成分才在澳大利亚被记录下来。本文报道了南澳北部库帕克里克和Palankarinna湖、Pinpa湖和Yanda湖的Palaelodus pledgei n. sp和p.w ilsoni n. sp这两个古elodid新种。该材料在测量和形态特征上与欧洲物种不同,构成了该属中最小和最大的物种。这些物种显然属于古菖蒲属,而不是巨菖蒲属,基于其元素的柔软性。古odus wilsoni将这个家族的年代范围扩展到了中更新世。由于欧洲和澳大利亚物种的差异,这种材料被认为在洲际对比中用处不大。导致澳大利亚古猿科灭绝的古环境因素可能与推测的凤凰科灭绝的古环境因素相似,即更新世末期湖泊满水位的丧失,……
{"title":"Palaelodus (Aves: Palaelodidae) from the Middle to Late Cainozoic of Australia","authors":"R. Baird, P. Vickers-Rich","doi":"10.1080/03115519808619196","DOIUrl":"https://doi.org/10.1080/03115519808619196","url":null,"abstract":"Skeletal elements of the extinct family Palaelodidae have only been recorded from Australia since 1982. We describe Palaelodus pledgei n. sp. and P. wilsoni n. sp., two new species of palaelodid from Cooper Creek, and Lakes Palankarinna, Pinpa and Yanda in northern South Australia. The material differs from European species in both mensural and morphological characters and constitutes the smallest and the largest species in the genus. These species clearly belong in the genus Palaelodus, rather than Megapaloelodus, based upon the gracile nature of the elements. Palaelodus wilsoni extends the chronological range of the family to the Middle Pleistocene. Owing to differences in the European and Australian species the material is considered to be of little use in intercontinental correlation. Palaeoenvironmental factors responsible for the extinction of the Palaelodidae in Australia may be similar to those speculated for the Phoenicopteridae, namely the loss of lake full levels at the end of the Pleistocene, ...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"135-151"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619196","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619236
C. Burrow, J. Long, S. Turner
Palaeozoic microvertebrate remains are documented from the Point Hibbs Formation, Point Hibbs, western Tasmania. They comprise scales, teeth and ornamented dermal bone from acanthodians “Nostolepis” guangxiensis, Nostolepis spp., Gomphonchus? bogongensis, Trundlelepis cervicostulata and Watsonacanthus? sp., onychodontiform sarcopterygians, and four types of placoderms. The microvertebrate fauna supports a Lower Devonian (Pragian) age for the deposit, when compared with other eastern Australian occurrences of these taxa.
{"title":"Lower Devonian microvertebrates from the Point Hibbs Formation, Tasmania","authors":"C. Burrow, J. Long, S. Turner","doi":"10.1080/03115519808619236","DOIUrl":"https://doi.org/10.1080/03115519808619236","url":null,"abstract":"Palaeozoic microvertebrate remains are documented from the Point Hibbs Formation, Point Hibbs, western Tasmania. They comprise scales, teeth and ornamented dermal bone from acanthodians “Nostolepis” guangxiensis, Nostolepis spp., Gomphonchus? bogongensis, Trundlelepis cervicostulata and Watsonacanthus? sp., onychodontiform sarcopterygians, and four types of placoderms. The microvertebrate fauna supports a Lower Devonian (Pragian) age for the deposit, when compared with other eastern Australian occurrences of these taxa.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"9-20"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619236","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619203
D. Cantrill
Fertile fern foliage described as Lophosoria cupulatus sp. nov. contains the distinctive spore Cyatheacidites annulatus. The fossil foliage is morphologically similar to the Early Cretaceous form-genera Gleichenites and Microphyllopteris, whose time and space distribution in Gondwana matches that of the dispersed spore Cyatheacidites. Some of the Cretaceous southern hemisphere material assigned to Gleichenites and Microphyllopteris is probably allied to families such as the Lophosoriaceae rather than the Gleicheniaceae as had been previously supposed. The nearest living relative, Lophosoria quadripinnata, grows within a mean annual temperature range of 8–22° C, and a mean annual precipitation range of 195–1977 mm. The presence of Lophosoria cupulatus at palaeolatitudes of 55–65° S implies that during the Aptian the southern high latitudes were a minimum of 12° C warmer than the present day.
{"title":"Early Cretaceous fern foliage from President Head, Snow Island, Antarctica","authors":"D. Cantrill","doi":"10.1080/03115519808619203","DOIUrl":"https://doi.org/10.1080/03115519808619203","url":null,"abstract":"Fertile fern foliage described as Lophosoria cupulatus sp. nov. contains the distinctive spore Cyatheacidites annulatus. The fossil foliage is morphologically similar to the Early Cretaceous form-genera Gleichenites and Microphyllopteris, whose time and space distribution in Gondwana matches that of the dispersed spore Cyatheacidites. Some of the Cretaceous southern hemisphere material assigned to Gleichenites and Microphyllopteris is probably allied to families such as the Lophosoriaceae rather than the Gleicheniaceae as had been previously supposed. The nearest living relative, Lophosoria quadripinnata, grows within a mean annual temperature range of 8–22° C, and a mean annual precipitation range of 195–1977 mm. The presence of Lophosoria cupulatus at palaeolatitudes of 55–65° S implies that during the Aptian the southern high latitudes were a minimum of 12° C warmer than the present day.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"241-258"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619203","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619329
C. Nedin, R. Jenkins
{"title":"First occurrence of the Ediacaran fossil Charnia from the southern hemisphere","authors":"C. Nedin, R. Jenkins","doi":"10.1080/03115519808619329","DOIUrl":"https://doi.org/10.1080/03115519808619329","url":null,"abstract":"","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"315-316"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619329","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619235
P. Haines
The carbonaceous fossil Chuaria circularis Walcott (1899) is reported from the Raiwalla Shale of the Wessel Group (onshore Arafura Basin), Northern Territory. As most occurrences of Chuaria are Proterozoic and the majority of these are Neoproterozoic, the Early to Middle Cambrian age previously assigned to the Wessel Group is no longer well supported, especially since the main fossil evidence on which this was based is no longer applicable. A carbonate unit containing a Middle Cambrian trilobite fauna, previously considered part of the Wessel Group, is now interpreted to lie unconformably above this group. The discovery has regional stratigraphic significance in northern Australia and the ages of other poorly dated successions, commonly assumed to be of Early Cambrian age, requires reassessment.
{"title":"Chuaria Walcott, 1899 in the lower Wessel Group, Arafura Basin, northern Australia","authors":"P. Haines","doi":"10.1080/03115519808619235","DOIUrl":"https://doi.org/10.1080/03115519808619235","url":null,"abstract":"The carbonaceous fossil Chuaria circularis Walcott (1899) is reported from the Raiwalla Shale of the Wessel Group (onshore Arafura Basin), Northern Territory. As most occurrences of Chuaria are Proterozoic and the majority of these are Neoproterozoic, the Early to Middle Cambrian age previously assigned to the Wessel Group is no longer well supported, especially since the main fossil evidence on which this was based is no longer applicable. A carbonate unit containing a Middle Cambrian trilobite fauna, previously considered part of the Wessel Group, is now interpreted to lie unconformably above this group. The discovery has regional stratigraphic significance in northern Australia and the ages of other poorly dated successions, commonly assumed to be of Early Cambrian age, requires reassessment.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"1-8"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619235","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619332
J. Conran, D. Christophel
A new fossil triplinerved dicotyledon leaf, Laurophyllum acrocryptocaryoides Conran & Christophel (Lauraceae) from Eocene deposits at Nerriga is described. The fossil is similar to the previously described L. acrodromum Hill, also from this site, but differs in leaf shape and cuticular features. L. acrocrytocaryoides also resembles some members of the extant genus Cryptocarya and its relationship to extant taxa is discussed.
{"title":"A new species of triplinerved Laurophyllum from the Eocene of Nerriga, New South Wales","authors":"J. Conran, D. Christophel","doi":"10.1080/03115519808619332","DOIUrl":"https://doi.org/10.1080/03115519808619332","url":null,"abstract":"A new fossil triplinerved dicotyledon leaf, Laurophyllum acrocryptocaryoides Conran & Christophel (Lauraceae) from Eocene deposits at Nerriga is described. The fossil is similar to the previously described L. acrodromum Hill, also from this site, but differs in leaf shape and cuticular features. L. acrocrytocaryoides also resembles some members of the extant genus Cryptocarya and its relationship to extant taxa is discussed.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"343-348"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619332","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59989059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619328
M. Walter, S. McLoughlin, A. Drinnan, J. Farmer
Molecular phylogenetic studies of extant organisms have shown that those branches of the Bacteria and Archaea that lie closest to the “last common ancestor” of all life are occupied by hyperthermophiles. At the same time, the search for former life on Mars has focussed on thermal spring deposits. For these reasons there is interest in the palaeobiology of ancient thermal spring deposits on Earth. Many such deposits are known but very few have been studied by palaeobiologists. The Devonian sinters of the Drummond Basin, Australia, rank with the Rhynie cherts of Scotland as the oldest well established examples of fossil subaerial hot springs. The Drummond Basin sinters are closely comparable with modem examples in Yellowstone National Park, Wyoming, and elsewhere. It is possible to recognise a range of palaeoenvironments from high temperature vents through former hot-water channelways and terraces to ambient temperature marsh deposits. Cyanobacterial stromatolites and microfossils are abundant in those pala...
{"title":"Palaeontology of Devonian thermal spring deposits, Drummond Basin, Australia","authors":"M. Walter, S. McLoughlin, A. Drinnan, J. Farmer","doi":"10.1080/03115519808619328","DOIUrl":"https://doi.org/10.1080/03115519808619328","url":null,"abstract":"Molecular phylogenetic studies of extant organisms have shown that those branches of the Bacteria and Archaea that lie closest to the “last common ancestor” of all life are occupied by hyperthermophiles. At the same time, the search for former life on Mars has focussed on thermal spring deposits. For these reasons there is interest in the palaeobiology of ancient thermal spring deposits on Earth. Many such deposits are known but very few have been studied by palaeobiologists. The Devonian sinters of the Drummond Basin, Australia, rank with the Rhynie cherts of Scotland as the oldest well established examples of fossil subaerial hot springs. The Drummond Basin sinters are closely comparable with modem examples in Yellowstone National Park, Wyoming, and elsewhere. It is possible to recognise a range of palaeoenvironments from high temperature vents through former hot-water channelways and terraces to ambient temperature marsh deposits. Cyanobacterial stromatolites and microfossils are abundant in those pala...","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"285-314"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619328","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988272","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619205
S. Wroe
Ganbulanyi djadjinguli gen. et sp. nov. is described on the basis of an upper molar and premolar from an early-late Miocene site in Riversleigh, northwestern Queensland. The paucity of material constrains certainty in the determination of it's phylogenetic position. But, among dasyuromorphians, and dependent on the interpretation of tooth homology, this species shows unequivocal synapomorphies only with the derived dasyurine Sarcophilus, and/or Barinya wangala, a possible sister taxon to the modern dasyurid radiation (i.e., Sminthopsinae, Phascogalinae, Dasyurinae). Other apomorphies, evident in G. djadjinguli, are common to both carnivorous thylacinids and dasyurids within the order. Some dental features of Ganbulanyi djadjinguli are treated as adaptations to a ‘bone cracking’ habitus. If this interpretation is correct, then this species represents the only pre-Pliocene Australian taxon known to occupy such a niche and perhaps the smallest specialist ‘bone-cracker’ within Mammalia.
Ganbulanyi djadjinguli gen. et sp. 11是在昆士兰西北部Riversleigh早-晚中新世遗址的上磨牙和前磨牙的基础上描述的。材料的缺乏限制了确定其系统发育位置的确定性。但是,在dasyromorphians中,依赖于牙齿同源性的解释,该物种仅与衍生的dasyuria Sarcophilus和/或Barinya wangala显示出明确的近亲关系,Barinya wangala可能是现代Dasyurinae的姊妹分类单元(即,Sminthopsinae, Phascogalinae, Dasyurinae)。在G. djadjinguli中很明显的其他类形在该目的肉食性袋狼和袋狼中都是常见的。Ganbulanyi djadjinguli的一些牙齿特征被认为是对“骨裂”习惯的适应。如果这个解释是正确的,那么这个物种代表了唯一一个已知占据这样一个生态位的前上新世澳大利亚分类群,也许是哺乳动物中最小的专业“骨头客”。
{"title":"A new ‘bone-cracking’ dasyurid (marsupialia), from the Miocene of Riversleigh, northwestern Queensland","authors":"S. Wroe","doi":"10.1080/03115519808619205","DOIUrl":"https://doi.org/10.1080/03115519808619205","url":null,"abstract":"Ganbulanyi djadjinguli gen. et sp. nov. is described on the basis of an upper molar and premolar from an early-late Miocene site in Riversleigh, northwestern Queensland. The paucity of material constrains certainty in the determination of it's phylogenetic position. But, among dasyuromorphians, and dependent on the interpretation of tooth homology, this species shows unequivocal synapomorphies only with the derived dasyurine Sarcophilus, and/or Barinya wangala, a possible sister taxon to the modern dasyurid radiation (i.e., Sminthopsinae, Phascogalinae, Dasyurinae). Other apomorphies, evident in G. djadjinguli, are common to both carnivorous thylacinids and dasyurids within the order. Some dental features of Ganbulanyi djadjinguli are treated as adaptations to a ‘bone cracking’ habitus. If this interpretation is correct, then this species represents the only pre-Pliocene Australian taxon known to occupy such a niche and perhaps the smallest specialist ‘bone-cracker’ within Mammalia.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"277-284"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59988408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-01-01DOI: 10.1080/03115519808619331
A. Warren, C. Marsicano
Australian Triassic strata have produced more species of brachyopid Amphibia than are known elsewhere. Some were described last century and most before the widespread use of cladistics. There is thus a need for redescriptions which include identification of characters useful for character analysis. This paper re-examines the Australian brachyopids as a preliminary to a cladistic analysis of the Brachyopidae, clarifies some controversial aspects of their anatomy and taxonomy, and concludes that all except Trucheosaurus major are true brachyopids. Notobrachyops picketti is unlike other members of the taxon in the absence of a sensory canal system.
{"title":"Revision of the Brachyopidae (Temnospondyli) from the Triassic of the Sydney, Carnarvon and Tasmania Basins, Australia","authors":"A. Warren, C. Marsicano","doi":"10.1080/03115519808619331","DOIUrl":"https://doi.org/10.1080/03115519808619331","url":null,"abstract":"Australian Triassic strata have produced more species of brachyopid Amphibia than are known elsewhere. Some were described last century and most before the widespread use of cladistics. There is thus a need for redescriptions which include identification of characters useful for character analysis. This paper re-examines the Australian brachyopids as a preliminary to a cladistic analysis of the Brachyopidae, clarifies some controversial aspects of their anatomy and taxonomy, and concludes that all except Trucheosaurus major are true brachyopids. Notobrachyops picketti is unlike other members of the taxon in the absence of a sensory canal system.","PeriodicalId":50830,"journal":{"name":"Alcheringa","volume":"22 1","pages":"329-342"},"PeriodicalIF":1.3,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/03115519808619331","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"59989008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}