Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science最新文献_第10页

The oldest tribosphenic mammal from Laurasia (Purbeck Limestone Group, Berriasian, Cretaceous, UK) and its bearing on the ‘dual origin’ of Tribosphenida 来自Laurasia(英国白垩纪Berriasian, Purbeck Limestone Group, Berriasian，白垩纪)的最古老的Tribosphenida哺乳动物及其对Tribosphenida“双重起源”的影响

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-31 DOI: 10.1016/S1251-8050(01)01612-3

Denise Sigogneau-Russell , Jeremy J Hooker , Paul C Ensom

引用次数: 43

Nouvelle modélisation des écoulements gravitaires sous-marins : application à l'effondrement de Nice de 1979 海底重力流的新模型:1979年尼斯坍塌的应用

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-31 DOI: 10.1016/S1251-8050(01)01606-8

Alexandre Hugot , Philippe Joseph , Bruno Savoye , Stéphane Zaleski

引用次数: 5

La diaphyse fémorale droite du squelette néandertalien de Saint-Césaire (Charente, France) 尼安德特人骨骼右侧股骨畸形saint - cesaire (Charente，法国)

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-31 DOI: 10.1016/S1251-8050(01)01608-1

Aurélie Del Prete, Bernard Vandermeersch

引用次数: 3

Impact of deglaciation on present-day intraplate seismicity in eastern North America and western Europe 冰川消融对现今北美洲东部和西欧板内地震活动的影响

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-15 DOI: 10.1016/S1251-8050(01)01623-8

Mark D Zoback, Balz Grollimund

{"title":"Impact of deglaciation on present-day intraplate seismicity in eastern North America and western Europe","authors":"Mark D Zoback, Balz Grollimund","doi":"10.1016/S1251-8050(01)01623-8","DOIUrl":"10.1016/S1251-8050(01)01623-8","url":null,"abstract":"<div><p>The retreat of major ice sheets in North America and northern Europe caused a large-scale isostatic desequilibrium of the lithosphere–asthenosphere system. As a result, formerly glaciated areas started to uplift and lithospheric bending occurred, especially near ice margins. While it is well known that post-glacial uplift continues until present-day in formerly glaciated areas, so has the associated flexure of the lithosphere. This continues to alter the stress state in the areas surrounding the former ice sheet. We have addressed the question of the impact of deglaciation on intraplate stress and seismicity in two separate studies. In one study, we have mapped out and modeled the stress field in the Norwegian sector of the Northern North Sea, a prominent hydrocarbon region in the vicinity of the edge of ice sheet that covered Fennoscandia until <span><math><mtext>∼20</mtext><mspace></mspace><mtext>000</mtext></math></span> years ago. In the other study, we investigated the influence of lithospheric flexure as the possible cause of the anomalously high seismicity in the New Madrid Seismic Zone in the central United States. This was the site of three extremely large (<em>M</em>∼8) earthquakes in 1811–1812, following several previous large earthquakes in Holocene time. As there is no significant deformation of Tertiary sediments in the area, deglaciation appears to have been a trigger for recent seismicity.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 1","pages":"Pages 23-33"},"PeriodicalIF":0.0,"publicationDate":"2001-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01623-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87718013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

Pics d'accélération du mouvement sismique observés lors du séisme de Chichi à Taiwan : application à l'estimation de l'aléa sismique 台湾奇奇地震地震运动加速度峰值:在地震灾害估算中的应用

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-15 DOI: 10.1016/S1251-8050(01)01582-8

Tsui-Yu Chang , Fabrice Cotton , Jacques Angelier , Tzay-Chyn Shin

{"title":"Pics d'accélération du mouvement sismique observés lors du séisme de Chichi à Taiwan : application à l'estimation de l'aléa sismique","authors":"Tsui-Yu Chang , Fabrice Cotton , Jacques Angelier , Tzay-Chyn Shin","doi":"10.1016/S1251-8050(01)01582-8","DOIUrl":"10.1016/S1251-8050(01)01582-8","url":null,"abstract":"<div><p>Attenuation laws are widely used in order to estimate the peak ground acceleration that may occur at a given locality during an earthquake, for hazard evaluation purposes. However, these simplified laws should be regarded acceptable only in the first approximation, because numerous significant parameters at the local and regional scales are often ignored. We examined the relationship between distance and peak acceleration based on examples from the dense accelerometric network of Taiwan, specifically for the Chichi destructive earthquake. We thus observed significant discrepancies between the predicted and observed accelerations, resulting from (1) near-field saturation, (2) amplification in sedimentary basins, and (3) hanging wall effect. We mapped the residual accelerations (difference between observed and predicted peak ground accelerations). This highlights the role of the regional structure, independently revealed by the geological analysis, as a significant factor that controls the transmission of the seismic accelerations.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 1","pages":"Pages 45-55"},"PeriodicalIF":0.0,"publicationDate":"2001-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01582-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84685148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Le séisme de Chichi (1999) et sa place dans l'orogène de Taiwan 奇奇地震(1999)及其在台湾造山带中的位置

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-15 DOI: 10.1016/S1251-8050(01)01563-4

Jacques Angelier , Jian-Cheng Lee , Hao-Tsu Chu , Jyr-Ching Hu , Chia-Yü Lu , Yu-Chang Chan , Lin Tin-Jai , Yvonne Font , Benoı̂t Deffontaines , Tsai Yi-Ben

{"title":"Le séisme de Chichi (1999) et sa place dans l'orogène de Taiwan","authors":"Jacques Angelier , Jian-Cheng Lee , Hao-Tsu Chu , Jyr-Ching Hu , Chia-Yü Lu , Yu-Chang Chan , Lin Tin-Jai , Yvonne Font , Benoı̂t Deffontaines , Tsai Yi-Ben","doi":"10.1016/S1251-8050(01)01563-4","DOIUrl":"10.1016/S1251-8050(01)01563-4","url":null,"abstract":"<div><p>The destructive Chichi earthquake occurred in Taiwan on 21 September 1999. This earthquake had exceptional consequences in terms of both the seismic hazard concerns that it raised in the island and the new seismotectonic and geodynamic concepts that arose concerning the Taiwan collision. This earthquake is quite typical of the SE–NW plate convergence. It reactivated a thrust ramp at the front of the belt. The rupture trace shows typical tectonic patterns that control the distribution of the damage associated with fault slip. The importance of geological studies for earthquake mitigation purposes is thus highlighted. Based on two examples (Chelungpu fault for locking and earthquakes, Chihshang fault for creep), the need for a better definition of the seismic cycle in Taiwan is highlighted. The Chichi earthquake suggests that the average shortening velocities are of the same order at the belt front and in the suture zone in the back of the belt. The concept of double convergent boundary is consequently introduced in the lithospheric model of Taiwan.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 1","pages":"Pages 5-21"},"PeriodicalIF":0.0,"publicationDate":"2001-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01563-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83782747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 24

Présentation 外观

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-15 DOI: 10.1016/S1251-8050(01)01637-8

Jacques Angelier, Paul Tapponnier

引用次数: 0

Mécanismes des failles des séismes des 17 et 21 juin 2000 dans la Zone sismique sud-islandaise, d'après les traces de surface des failles d'Árnes et de l'Hestfjall 机制的地震断层的地震区的17日和2000年6月21日sud-islandaise表面痕迹显示断层Á场就交通和l’Hestfjall

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-15 DOI: 10.1016/S1251-8050(01)01581-6

Françoise Bergerat, Jacques Angelier

{"title":"Mécanismes des failles des séismes des 17 et 21 juin 2000 dans la Zone sismique sud-islandaise, d'après les traces de surface des failles d'Árnes et de l'Hestfjall","authors":"Françoise Bergerat, Jacques Angelier","doi":"10.1016/S1251-8050(01)01581-6","DOIUrl":"10.1016/S1251-8050(01)01581-6","url":null,"abstract":"<div><p>Two major earthquakes (<em>M</em><sub>s</sub>=6.6) occurred on 17 and 21 June 2000 in the South Iceland Seismic Zone. This paper presents characteristic examples of surface traces of these seismic faults, called the Árnes and Hestfjall faults. The surface trace of the Árnes fault at Mykjunes shows a conjugate strike-slip pattern with a N30°E trending right-lateral fault and a N60°E trending left-lateral fault. Each of these faults is formed by ‘en-échelon’ arrays of fractures and push-ups. The surface trace of the Hestfjall fault near Bitra reveals a N50°–60°E trending left-lateral strike-slip fault including large open fractures, ‘en-échelon’ fractures and some push-ups. These observations show that the actual earthquake-related fault pattern is not restricted to the north–south-trending dextral strike-slip revealed by focal mechanisms and north–south alignment of aftershocks, but includes conjugate systems consistent with the structural pattern of the SISZ.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 1","pages":"Pages 35-44"},"PeriodicalIF":0.0,"publicationDate":"2001-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01581-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91023567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

La sismicité historique en Islande : aspects géologiques et impacts environnementaux et sociaux. Exemples dans la Zone sismique sud-islandaise 冰岛的历史地震活动:地质方面以及环境和社会影响。冰岛南部地震带的例子

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-15 DOI: 10.1016/S1251-8050(01)01566-X

Françoise Bergerat

引用次数: 2

The Chichi earthquake sequence, Taiwan: results from source parameter and stress tensor inversions 台湾赤池地震序列:震源参数和应力张量反演结果

Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science Pub Date : 2001-07-15 DOI: 10.1016/S1251-8050(01)01617-2

Honn Kao , Jacques Angelier

{"title":"The Chichi earthquake sequence, Taiwan: results from source parameter and stress tensor inversions","authors":"Honn Kao , Jacques Angelier","doi":"10.1016/S1251-8050(01)01617-2","DOIUrl":"10.1016/S1251-8050(01)01617-2","url":null,"abstract":"<div><p>The main shock of the Chichi earthquake took place along the north–south-trending Chelungpu fault between the coastal plain and western foothills of Taiwan. It consisted of five major sub-events with the rupture propagating from south to north. The largest seismic moment is located 30–35 km north of the initial rupture. Waveform inversion results indicate a low-angle thrust fault dipping to the east. The centroid depth is 11–12 km. The seismogenic patterns of aftershocks indicate that the Chichi earthquake sequence can be explained by westward block thrusting on the Chelungpu fault, with strike-slip motions at the northern and southern tips. A deeper seismogenic zone lies 15 km directly beneath the Chichi main fault plane, indicating that the deformation associated with the Chichi event involves deep crust and thus cannot be entirely explained by detachment at shallow crust levels. The result of stress tensor inversion is remarkably consistent with that derived from regional background seismic data before the Chichi sequence, and with the palaeostress pattern reconstructed from geological evidences. It is inferred that the stress regime corresponding to the regional collision in Taiwan is the same as that responsible for the occurrence of the Chichi earthquake sequence. Consequently, we propose to consider the Chichi earthquake sequence as a typical manifestation of the mountain-building process in Taiwan.</p></div>","PeriodicalId":100301,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science","volume":"333 1","pages":"Pages 65-80"},"PeriodicalIF":0.0,"publicationDate":"2001-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1251-8050(01)01617-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72379473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11