標(biāo)題: Titlebook: Extinction Events in Earth History; Proceedings of the P Erle G. Kauffman,Otto H. Walliser Conference proceedings 1990 Springer-Verlag Berl [打印本頁(yè)] 作者: 引起極大興趣 時(shí)間: 2025-3-21 18:03
書(shū)目名稱(chēng)Extinction Events in Earth History影響因子(影響力)
書(shū)目名稱(chēng)Extinction Events in Earth History影響因子(影響力)學(xué)科排名
書(shū)目名稱(chēng)Extinction Events in Earth History網(wǎng)絡(luò)公開(kāi)度
書(shū)目名稱(chēng)Extinction Events in Earth History網(wǎng)絡(luò)公開(kāi)度學(xué)科排名
書(shū)目名稱(chēng)Extinction Events in Earth History被引頻次
書(shū)目名稱(chēng)Extinction Events in Earth History被引頻次學(xué)科排名
書(shū)目名稱(chēng)Extinction Events in Earth History年度引用
書(shū)目名稱(chēng)Extinction Events in Earth History年度引用學(xué)科排名
書(shū)目名稱(chēng)Extinction Events in Earth History讀者反饋
書(shū)目名稱(chēng)Extinction Events in Earth History讀者反饋學(xué)科排名
作者: abysmal 時(shí)間: 2025-3-21 21:54
Biological selectivity of extinction,ion of causality. Heritable differences in characters may have predictable consequences in terms of differential species survival. Differences in magnitude and intensity of extinction are insufficient to distinguish background from mass extinction regimes. Biological adaptations may establish links 作者: Boycott 時(shí)間: 2025-3-22 03:48 作者: Melanocytes 時(shí)間: 2025-3-22 07:31
Shock pressures in igneous processes: Implications for K/T events,sure of about 500 kbar. Such pressures fall off with distance from the magma chamber although jointing, fractures, etc. may act as stress concentrators to extend the radius of formation of shocked minerals as far as a kilometer. Shocked minerals are not to be expected from the magma itself as high t作者: PACT 時(shí)間: 2025-3-22 11:58
Vertical advection from oxic or anoxic water from the main pycnocline as a cause of rapid extinction based on photosynthesis. Waters from the main pycnocline (100–1000 m) or deeper naturally contain decay products from sinking organic matter as a function of the oxidation state of the waters. Such products, in proper concentrations, can inhibit photosynthetic growth or are toxic or debilitating t作者: 過(guò)度 時(shí)間: 2025-3-22 13:15
Evolutionary crisis within the Ordovician acrotretid inarticulate brachiopods of Poland,pt for three genera of the . line going up to the Silurian and of the . line going on to the Lower Devonian. In Poland, acrotretids are very diversified in Ordovician, especially in the Lower Ordovician/Upper Tremadocian-Llanvirnian), similarly as e.g. in Balto-Scandia (Sweden, Estonia, Leningrad en作者: 過(guò)度 時(shí)間: 2025-3-22 18:04 作者: 我要威脅 時(shí)間: 2025-3-22 21:13
Silurian and pre-Upper Devonian bio-events,ble with shelly benthos are bio-events in the C.–C. interval of the Upper Llandovery, in the early Wenlock, late Wenlock, late Ludlow, Silurian-Devonian boundary, near the base of the Emsian, near the end of the Eifelian, and near the end of the Givetian. The last two coincide in time with what may 作者: 光亮 時(shí)間: 2025-3-23 03:30 作者: sparse 時(shí)間: 2025-3-23 09:12
The Middle Givetian ,-Events a tool for high time resolution and event-stratigraphical correlation,rica. Their exceptional character is not only based on the mass occurrence of “.” . (a small brachiopod), but also on additional biofacial and special sedimentological features. Due to their synchronous, extremely short-term deposition the . Horizons are excellent index horizons for a basin-wide cor作者: Sarcoma 時(shí)間: 2025-3-23 11:30
The late Frasnian (Upper Devonian) Kellwasser Crisis,uences on different groups of organisms over a time span of more than 1 my. Therefore the term Kellwasser Crisis (KW Crisis) is introduced. Extraordinary episodes of the KW Crisis, like e.g. the Upper KW Horizon, develop stepwise, too. The KW Bio-event demands a multicausal explanation. A model of s作者: 不合 時(shí)間: 2025-3-23 15:28 作者: 自作多情 時(shí)間: 2025-3-23 18:07
Frasnian/famennian event in the Holy Cross Mts, Central Poland: Stratigraphic and ecologic aspects, i.e. distinctly after Frasnian/Famennian reef extinction event. Stepwise termination of the Frasnian-type biotas was joined with successive sea-level fluctuations interfering with local tectonic activity, but diversified and locally abundant coral-dominated coelenterate communities, as well as pecu作者: 擴(kuò)音器 時(shí)間: 2025-3-24 02:16
,Late Devonian — Early Carboniferous paleobiogeography of benthic Foraminifera and climatic oscillatoraminiferal fauna which are believed to reflect the major climatic oscillations. A certain regularity of the outlined oscillations raises the question of the periodicity of the initial events. The extinctions at the Frasnian-Famennian and Devonian-Carboniferous boundary appear to be stepwise affect作者: Flavouring 時(shí)間: 2025-3-24 06:24 作者: ethereal 時(shí)間: 2025-3-24 09:49 作者: 群居動(dòng)物 時(shí)間: 2025-3-24 10:42 作者: Yag-Capsulotomy 時(shí)間: 2025-3-24 15:28
Falguni Sarkar,P. S. Paul,Aveek Mangalvents, and flood-basalt volcanism suggests some common thread of cause and effect. Links between these phenomena have been proposed, and although the interactions are most likely complex, one common effect might be an increase in trace metals in the earth‘s surface systems. Increased trace metals co作者: 節(jié)約 時(shí)間: 2025-3-24 19:20 作者: 不能根除 時(shí)間: 2025-3-24 23:27
Comprehensive Utilization of Carbide Slag,n based on photosynthesis. Waters from the main pycnocline (100–1000 m) or deeper naturally contain decay products from sinking organic matter as a function of the oxidation state of the waters. Such products, in proper concentrations, can inhibit photosynthetic growth or are toxic or debilitating t作者: 芭蕾舞女演員 時(shí)間: 2025-3-25 05:21 作者: 倔強(qiáng)不能 時(shí)間: 2025-3-25 10:10 作者: coddle 時(shí)間: 2025-3-25 13:22
https://doi.org/10.1007/978-3-030-36660-5ble with shelly benthos are bio-events in the C.–C. interval of the Upper Llandovery, in the early Wenlock, late Wenlock, late Ludlow, Silurian-Devonian boundary, near the base of the Emsian, near the end of the Eifelian, and near the end of the Givetian. The last two coincide in time with what may 作者: exclusice 時(shí)間: 2025-3-25 19:31
Industrial System Engineering for Dronesarious event patterns and also for the “event ”concept itself are lacking. Event names do not help either to clarify its nature. Identification through lithostratigraphic terms, corresponding to settings and units where the events develop better, is proposed here. The remarkable vagueness in definit作者: anachronistic 時(shí)間: 2025-3-25 20:34 作者: 陶醉 時(shí)間: 2025-3-26 02:50
International Political Economy Seriesuences on different groups of organisms over a time span of more than 1 my. Therefore the term Kellwasser Crisis (KW Crisis) is introduced. Extraordinary episodes of the KW Crisis, like e.g. the Upper KW Horizon, develop stepwise, too. The KW Bio-event demands a multicausal explanation. A model of s作者: BUDGE 時(shí)間: 2025-3-26 04:43 作者: ARM 時(shí)間: 2025-3-26 11:09
Correction to: Industrial Waste Engineering, i.e. distinctly after Frasnian/Famennian reef extinction event. Stepwise termination of the Frasnian-type biotas was joined with successive sea-level fluctuations interfering with local tectonic activity, but diversified and locally abundant coral-dominated coelenterate communities, as well as pecu作者: 沖突 時(shí)間: 2025-3-26 13:13 作者: 忘川河 時(shí)間: 2025-3-26 19:10
Evelina Ametova,Gabriel Probst,Wim Dewulfound the Permian-Triassic boundary, some major fossil groups (on the class and order level) became extinct; others passed from one system to the other with minor or major modifications; yet others sailed through with just ordinary, expectable, evolutionary changes. The evidence points toward the occ作者: BLANC 時(shí)間: 2025-3-27 00:24 作者: remission 時(shí)間: 2025-3-27 05:11 作者: Throttle 時(shí)間: 2025-3-27 08:46 作者: Flatter 時(shí)間: 2025-3-27 12:25
Sprays in Industrial Production Processes,In this paper a new possible explanation of iridium anomalies in the extinction boundaries is proposed. I found that the impact of an object is not necessary to be in the theory when we try to explain the iridium anomaly.作者: BUDGE 時(shí)間: 2025-3-27 16:12 作者: 古文字學(xué) 時(shí)間: 2025-3-27 19:34 作者: BAIL 時(shí)間: 2025-3-28 00:35 作者: Indelible 時(shí)間: 2025-3-28 04:09
https://doi.org/10.1007/BFb0011129Mass extinction; Massenaussterben; Oxide; Sediment; Trias; biological events; biologische Krisen; evolution作者: 我還要背著他 時(shí)間: 2025-3-28 09:30
0930-0317 extinction events and similar biotic crises, and their causal mechanisms. In particular, it documents in detail the complex nature of terrestrial and extraterrestrial feedback loops that are associated with many mass extinction intervals. Authors have been asked to represent most of the known mass 作者: AND 時(shí)間: 2025-3-28 11:52 作者: 印第安人 時(shí)間: 2025-3-28 17:15 作者: Infirm 時(shí)間: 2025-3-28 20:46 作者: Infiltrate 時(shí)間: 2025-3-29 01:15
https://doi.org/10.1007/978-981-99-2489-9n of the periodicity of the initial events. The extinctions at the Frasnian-Famennian and Devonian-Carboniferous boundary appear to be stepwise affecting preferentially tropic-subtropic fauna which is gradually replaced by the temperate one. They are thus in general similar to the Cretaceous-Tertiary or Eocene-Oligocene extinction.作者: 準(zhǔn)則 時(shí)間: 2025-3-29 06:59 作者: Mobile 時(shí)間: 2025-3-29 08:11 作者: Foregery 時(shí)間: 2025-3-29 14:15
Silurian and pre-Upper Devonian bio-events,h in graptolites or other pelagic organisms, with these bio-events is not easy to see. Ranking these lower level bio-events is of questionable significance since we do not presently have any truly “objective ”criteria possessed of real biologic significance (mere taxon counting is certainly not the answer).作者: paroxysm 時(shí)間: 2025-3-29 18:57
A multi-causal model of mass extinctions: Increase in trace metals in the oceans,interactions are most likely complex, one common effect might be an increase in trace metals in the earth‘s surface systems. Increased trace metals could lead to severe effects on the biota, and would exacerbate the general environmental crises at times of comet or asteroid impacts.作者: Immortal 時(shí)間: 2025-3-29 20:55
The Middle Givetian ,-Events a tool for high time resolution and event-stratigraphical correlation, sedimentological features. Due to their synchronous, extremely short-term deposition the . Horizons are excellent index horizons for a basin-wide correlation of Givetian pelagic limestones and for a further refinement of the middle Givetian time-scale. An interpretation of the . Horizons as tsunami deposits is given.作者: Disk199 時(shí)間: 2025-3-30 00:04 作者: anticipate 時(shí)間: 2025-3-30 07:47 作者: 裝勇敢地做 時(shí)間: 2025-3-30 08:13
https://doi.org/10.1007/978-981-19-7026-9virons). The main factors responsible for their mass extinction are discussed: they comprise, among others, changes of sea level, changes of climate in connection with glaci-eustatic events and fluctuations in the rate of the sea-floor spreading.作者: Repatriate 時(shí)間: 2025-3-30 14:39
Adhesives from Starch and Dextrin, reductions in species diversity, however, only occurred during deposition of the Java Group at the very end of the Frasnian. The period of diversity loss was much more abrupt and short term than the period elevated extinction rates, and was more a function of a drop in speciation rate than a direct function of an increase in extinction rate.作者: orient 時(shí)間: 2025-3-30 20:02 作者: Entrancing 時(shí)間: 2025-3-30 23:53
The Frasnian-Famennian mass extinction record in the eastern United States, reductions in species diversity, however, only occurred during deposition of the Java Group at the very end of the Frasnian. The period of diversity loss was much more abrupt and short term than the period elevated extinction rates, and was more a function of a drop in speciation rate than a direct function of an increase in extinction rate.作者: 心胸開(kāi)闊 時(shí)間: 2025-3-31 03:58
Industrial System Engineering for DronesR cycle. The appearance of the suborder Tornoceratina, usually coupled with the Kacak-. event, occurs in Palencia in a later transgressive pulse; this would indicate that it is a different bio-event with a great potential value as a stratigraphic boundary or correlation tool.作者: 賠償 時(shí)間: 2025-3-31 05:32 作者: figurine 時(shí)間: 2025-3-31 10:00
Phanerozoic extinctions: How similar are they to each other?,n ecologic time (less than a thousand years). This suggests that “instantaneous ”extra-terrestrial events are not likely to have influenced the gradual phase of either extinctions or adaptive radiations in any very important manner, unless they are in need of ecological amplification in order to be 作者: Anterior 時(shí)間: 2025-3-31 13:35 作者: obtuse 時(shí)間: 2025-3-31 18:40
Shock pressures in igneous processes: Implications for K/T events,r yield pressures to several megabars although some recent arguments asserted to be volcanological would indicate open air bursts greater than one bar to be impossible. Further, it has been indicated that pressure estimates from ballistic considerations have been too high and large phenocryst conten作者: Graves’-disease 時(shí)間: 2025-3-31 22:42 作者: Fretful 時(shí)間: 2025-4-1 05:06
Late Ordovician graptolite mass mortality and subsequent early silurian re-radiation,n in low oxygen but bacteria-rich waters similar to those found in the modern Eastern Tropical Pacific. Areal reduction in those environments as well as reduction in food resources preferred by graptolites resulted in diminished graptolite populations. These reductions took place gradually in many p作者: plasma-cells 時(shí)間: 2025-4-1 06:26
Frasnian/famennian event in the Holy Cross Mts, Central Poland: Stratigraphic and ecologic aspects,en algae biota, on the remaining shoals characterised the earliest Famennian time. More successful colonization by diversified, Famennian-type benthic and pelagic faunas started in the . Zone, which reflects progressive habitat recovery within the seriously disturbed shelf ecosystem.作者: 逢迎春日 時(shí)間: 2025-4-1 11:44 作者: TOM 時(shí)間: 2025-4-1 18:06
Important considerations in the investigation of global bioevents,
