- published: 20 Apr 2015
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A group in stratigraphy is a lithostratigraphic unit, a part of the geologic record or rock column that consists of defined rock strata. Groups are generally divided into individual formations. Groups may sometimes be divided into "subgroups" and are themselves sometimes grouped into "supergroups".
Some well known groups of northwestern Europe have in the past also been used as units for chronostratigraphy and geochronology. These are the Rotliegend, Zechstein (both of Permian age), Buntsandstein, Muschelkalk, Keuper (Triassic in age), Lias, Dogger and Malm (Jurassic in age) groups. Because of the confusion this causes, the official geologic timescale of the ICS does not contain any of these names any longer.
Group may refer to:
Just 7 people, just a meeting per month. And what results! The concepts elaborated by Pete Vail gave rise to the field of Sequence Stratigraphy and affected the entire Oil & Gas Industry. The international recognition of his contributions to Geology made him earn multiple awards:e.g., the Benjamin Franklin Medal from the Franklin Institute, the Legendary Geoscientist Award from AGI, the Penrose Medal from GSA, the Sidney Powers Memorial Award from AAPG, Virgil Kauffman Gold Medal from SEG, Twenhofel Medal from SEPM... Here something more about Pete: https://archives.aapg.org/explorer/2003/05may/slc_vail.cfm Other videos with Pete Vail: 0 The Slug model_______________________________________https://youtu.be/vGfz_POTwRg 1 Seismic reflectors follow time lines not rock formations _________ ...
nomenclature of relationships of sedimentary rocks, sequence stratigraphy and terminology, eustatic cycles, definitions of formation and its multiples, geochronologic and chronostratigraphic compared, stage definition, GSSP (Golden spike) main fossil groups for biostratigraphy
Experiment in Total E&P; Flume conducted by graduate student group in the course, Morphodynamics and Quantitative Stratigraphy, 2012 Fall. Changes in sea level and sediment supply were applied in this experiment.
A group in stratigraphy is a lithostratigraphic unit, a part of the geologic record or rock column that consists of defined rock strata.Groups are generally divided into individual formations.Groups may sometimes be divided into "subgroups" and are themselves sometimes grouped into "supergroups".Some well known groups of northwestern Europe have in the past also been used as units for chronostratigraphy and geochronology. This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision. Article available under a Creative Commons license Image source in video
A drone view of the Ghost Ranch Stratigraphy, including the Chinle Group, Entranda Sandstone, and Todilto Formation.
Massive lava flows covered much of the inland Northwest 17-6 million years ago. The Ice Age Floods "Missoula Floods" later cut deep coulees and channels into the basalt flows. The basalt surged to the surface through fissures - like cracks in the bottom of a row boat. The stack of basalt layers is more than 2 miles thick at some locations. More than 300 lava flows erupted. Cascade volcanoes (Rainier, St. Helens, Hood, etc.) are not related to the Columbia River Basalt flows - The chemistry does not match! The Columbia River Basalts flowed from fissures to the east. The Columbia River Basalts are believed to be connected to the hotspot now under Yellowstone National Park. Photos, video and map are used to illustrate. Geologist make comparison between Columbia River Basalts and lava basalt...
STRATIGRAPHER enables the construction of stratigraphic columns for geologic or geotechnical usage and further the documentation of well construction. User form design is enabled through the provision of a document template editor. The resultant documentation model(s) can be stored for reuse. Thereafter the selection of documentation format is by the selection of templates. On the document, adjacent columns, user selected by choice of template, present the lithologic, lithotypes and exploration characteristic recorded during trial borings or well construction characteristics. Bitmap patterns are inserted directly from supplied libraries whose background and texture images may be user updated and personalized. The program permits simple modification of the elevation level of lithologic prop...
Discussion of sequence stratigraphy at Torrey Pines beach cliffs where Eocene Torrey Sandstone and underlying conformable (?) Del Mar formation is exposed under Pleistocene Lindavista Formation. Retired geology professor John Warme (Colorado School of Mines) leads a group of geologists to this world famous Eocene paleo-submarine canyon located within the 300 foot La Jolla, California, sea cliffs. Exxon, Chevron, and other oil companies send their geologists to study this classic location where the stratigraphy can be seen and studied in three dimensions. Prof. Warme contrasts the sequence stratigraphic model (the "Exxon" model) with the transgression-regression model of Kennedy as part of his Ph.D dissertation. Both models were proposed independently about the same time (early 1970s) but n...
Subject: Sedimentology and Stratigraphy for Petroleum Engineers School: Australian School of Petroleum Group presentation: Upper and lower flow regime plane bed deposits;Planar stratification (UFR) Institution: Australian School of Petroleum, University of Adelaide Date: 29/08/2016 Produced by: Yanni Tyrikos-Frazis Gianni Magliani Michael Nicholas Dell'Antonio Jonghyeok Ahn Created with GoPro Studio
Geosain Delta Andalan or GDA is the only research-based geology consultancy in Indonesia. She was born in 2000 under the name GDA Daya Ayfedha and turn into Geosain Delta Andalan in 2005 The company focus is on the application of new concepts in stratigraphy, sedimentology and petroleum system in exploration/exploitation of hydrocarbon and other minerals, also the development of earth resource potential for regional planning. In 2006 Andang Bachtiar, the Chairman of GDA, developed ETTI, an Indonesia Oil and gas service company. The Company provides combined competencies in oil and gas exploration study, production study, farm in - farm out solution center, seismic acquisition, and drilling service. 2011 is the year when Paleopetro and GEC was born as a subsidiary company PALEOPETRO i...
A group in stratigraphy is a lithostratigraphic unit, a part of the geologic record or rock column that consists of defined rock strata.Groups are generally divided into individual formations.Groups may sometimes be divided into "subgroups" and are themselves sometimes grouped into "supergroups".Some well known groups of northwestern Europe have in the past also been used as units for chronostratigraphy and geochronology. This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision. Article available under a Creative Commons license Image source in video
A drone view of the Ghost Ranch Stratigraphy, including the Chinle Group, Entranda Sandstone, and Todilto Formation.
Subject: Sedimentology and Stratigraphy for Petroleum Engineers School: Australian School of Petroleum Group presentation: Upper and lower flow regime plane bed deposits;Planar stratification (UFR) Institution: Australian School of Petroleum, University of Adelaide Date: 29/08/2016 Produced by: Yanni Tyrikos-Frazis Gianni Magliani Michael Nicholas Dell'Antonio Jonghyeok Ahn Created with GoPro Studio
Just 7 people, just a meeting per month. And what results! The concepts elaborated by Pete Vail gave rise to the field of Sequence Stratigraphy and affected the entire Oil & Gas Industry. The international recognition of his contributions to Geology made him earn multiple awards:e.g., the Benjamin Franklin Medal from the Franklin Institute, the Legendary Geoscientist Award from AGI, the Penrose Medal from GSA, the Sidney Powers Memorial Award from AAPG, Virgil Kauffman Gold Medal from SEG, Twenhofel Medal from SEPM... Here something more about Pete: https://archives.aapg.org/explorer/2003/05may/slc_vail.cfm Other videos with Pete Vail: 0 The Slug model_______________________________________https://youtu.be/vGfz_POTwRg 1 Seismic reflectors follow time lines not rock formations _________ ...
A team of scientists have recently published a paper which argues that Earth should no longer be considered in the Holocene era but, rather, a new phase called the Anthropocene given the extent to which humans have altered the planet. Humans have ushered Earth into a new and distinct geological era, according to a team of scientists. As such, they believe the current era should officially be recognized as Anthropocene, marking the end of the ongoing Holocene. One of the researchers explains simply, “Our species is clearly capable of altering the course of Earth history rather more than the average species.” According to their recently published study, the shift hinges on the amount of geological change found in ice and sediment that can be attributed to human activity. ...
Subject: Sedimentology and Stratigraphy for Petroleum Engineers Group presentation: Planar stratification in Upper and Lower Flow regimes (Group 5). Institution: Australian School of Petroleum, University of Adelaide Date: 29/08/2014 Produced by: Jake Darby Rui Lau Steve Tsiolis Sumukh Rudrapatna Thomas Phan Created with TouchCast https://itunes.apple.com/us/app/touchcast/id603258418 For the interactive version visit: http://touchcast.com/csgo/23b60cd93a
Pete Vail, the father of Sequence Stratigraphy, explains himself the Slug Model (system tracts, key surfaces and anecdotes) The concepts elaborated by Pete Vail gave rise to the field of Sequence Stratigraphy and affected the entire Oil & Gas Industry. The international recognition of his contributions to Geology made him earn multiple awards:e.g., the Benjamin Franklin Medal from the Franklin Institute, the Legendary Geoscientist Award from AGI, the Penrose Medal from GSA, the Sidney Powers Memorial Award from AAPG, Virgil Kauffman Gold Medal from SEG, Twenhofel Medal from SEPM... Here something more about Pete: https://archives.aapg.org/explorer/2003/05may/slc_vail.cfm Other videos with Pete Vail: 0 The Slug model_________________________________________https://youtu.be/vGfz_POTwRg 1 ...
Experiment in Total E&P; Flume conducted by graduate student group in the course, Morphodynamics and Quantitative Stratigraphy, 2012 Fall. Changes in sea level and sediment supply were applied in this experiment.
Jan Zalasiewicz is Senior Lecturer at Leicester University and Chair of the Anthropocene Working Group of the International Commission on Stratigraphy. In this talk he explains what the Anthropocene means geolocially (1:35) and how it is still being debated. He mentions how the Comte de Buffon talked of man's impact in the 1780's (4:30). How the "Great Acceleration" stratigraphically, began 300 years ago (8:30). He then outlines the manmade geological effects and the immense impact they will have. How vulnerable our atmosphere and seas (18:50) and the effects man's "civilisation" is having upon them (21:20). We're on the edge of mass extinctions (29:20) and the explosion of invasive species and domesticated animals (30:00) are having dire effects.
STEP basin experiment at University of Texas at Austin; designed and conducted by "Calling All Experimentalists" group participated in the Experimental Stratigraphy workshop, December 2012.
From Snowball Earth to the Cambrian Explosion: recent research advances from China Prof. Maoyan ZHU State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, PR China Tuesday 12 July, 9:00 am – Cambrian Title: "From Snowball Earth to the Cambrian Explosion: recent research advances from China" Maoyan is a research professor at the Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (NIGPAS). He studied geology at the Changchun College of Geology and received his PhD in 1992 from NIGPAS. He was elected as an international corresponding member of the Academy of Science Göttingen, voting member of the International Subcommissions on Cambrian Stratigraphy (ISCS) and Ediacaran Stratig...
The Soil Systems framework is a powerful, flexible approach for organizing, applying, and communicating soils information. This webinar is ideal for all Soil Scientists involved in the National Cooperative Soil Survey, as well as a broader audience of soil information users. Soil Systems are distinct, recurring groups of soils or catenas produced by the interaction of stratigraphy, hydrology, geomorphology, vegetation, and climate and which dominate a given physiographic area. This approach connects related soils and extends catenas to areas / watersheds, and can become a bridge between point and area data in 4 dimensions. Captioning available upon request by e-mailing webmaster@lin.usda.gov. USDA is an equal opportunity provider and employer.
PART 1 / 3 How does the recent cognition of the immense quantitative shift in the biophysical conditions of the Earth affect both scientific research and a political response to these changes? Does the Anthropocene also pose a profound qualitative shift, a paradigm shift for the ways in which science, politics, and law advance accordingly? The Anthropocene Working Group (AWG) is an interdisciplinary body of scientists and humanists working under the umbrella of the International Commission on Stratigraphy and tasked with developing a proposal for the formal ratification of the Anthropocene as an official unit amending the Geological Time Scale. On occasion of its very first meeting, the AWG together with HKW convene a socio- and science-political forum , bringing together scientific exper...
PART 2 / 3 How does the recent cognition of the immense quantitative shift in the biophysical conditions of the Earth affect both scientific research and a political response to these changes? Does the Anthropocene also pose a profound qualitative shift, a paradigm shift for the ways in which science, politics, and law advance accordingly? The Anthropocene Working Group (AWG) is an interdisciplinary body of scientists and humanists working under the umbrella of the International Commission on Stratigraphy and tasked with developing a proposal for the formal ratification of the Anthropocene as an official unit amending the Geological Time Scale. On occasion of its very first meeting, the AWG together with HKW convene a socio- and science-political forum , bringing together scientific exper...
PART 3 / 3 How does the recent cognition of the immense quantitative shift in the biophysical conditions of the Earth affect both scientific research and a political response to these changes? Does the Anthropocene also pose a profound qualitative shift, a paradigm shift for the ways in which science, politics, and law advance accordingly? The Anthropocene Working Group (AWG) is an interdisciplinary body of scientists and humanists working under the umbrella of the International Commission on Stratigraphy and tasked with developing a proposal for the formal ratification of the Anthropocene as an official unit amending the Geological Time Scale. On occasion of its very first meeting, the AWG together with HKW convene a socio- and science-political forum , bringing together scientific exper...
British Society for Geomorphology Debate The Anthropocene: is there a geomorphological case? Chaired by Stephen Tooth, with panellists Professor Tony Brown, Simon Price and Professor Andreas Lang. Are we in the Anthropocene and no longer in the Holocene? Has human activity integrated and changed natural processes? Have we created our own geological time period? The 'Anthropocene', as used to describe the interval of recent Earth history during which humans have had an 'overwhelming' effect on the Earth system, is now being formally considered as a possible new geological Epoch. Such a new geological time interval (possibly equivalent to the Pleistocene Epoch) requires both theoretical justification as well as empirical evidence preserved within the geological record. Since the geo...