mz_paleogeog_wus.html Baja BC and North America at 105 Ma Images and text modified from a poster session presented to the Annual Meeting of the Geological Society of America, Seattle, Nov. 2003 by Ron Blakey and Paul Umhoefer, Department of Geology, NAU. The images and text presented here show the paleogeography and tectonic evolution of western North America during the Mesozoic but tie in to Late Paleozoic and Early Cenozoic events as well. Emphasis is on an evolving and complicated tectonic assembladge of terranes that accreted to western North America, primarily during the Mesozoic. Our goal is to demonstrate the sequences paleogeographic evolution in relation to complex, dynamic, tectonic events. Outline of Presentation AbstractIntroductionPaleogeography and Geologic HistoryReferencesText only - all text without figures Return to RCB Home page
El Parque Prehistórico - recursos para todos Programas: El Parque Prehistórico El Parque Prehistórico Sinopsis: Una aventura que retrocede en el tiempo para rescatar a diferentes animales prehistóricos del peligro, de la enfermedad o de su extinción inminente. ¿Qué sería de esas especies si tuvieran una segunda oportunidad en la seguridad del presente? Género: Documental Etiquetas: dinosaurio, clasificación de dinosaurios North America -- Key time slices showing paleogeographic and tectonic history The Key-Time-slice series of paleogeographic maps for North America was completed in June, 2013. The maps represent a complete redo of the previous North American series; map size and resolution were increased by nearly twice and new data from the geologic literature were used in map preparation. Their detail and image size make them some of my most detailed maps. The maps were compiled from many sources (see below) and are based on many different tectonic models; numerous compromises between varying models were necessary, especially models of terrane accretion. Particular attention was paid to making sure that tectonic and geologic events between adjacent time slices made geologic, geographic (space issues), and tectonic sense. All of the features on the maps are palinspastically restored -- that is, the positions of various terranes and blocks are shown in their presumed location during a given time slice. Additional Notes
index Planet Earth, a beginners guide | Shropshire's Geological Trail | What's My Rock? | About Shaping of Shropshire | Contact us This page arose from the Shaping of Shropshire joint project between Shropshire Wildlife Trust and Shropshire Geological Society, supported by the Heritage Lottery Fund. All content of this site is ©Shropshire Wildlife Trust and Shropshire Geological Society Geologic time scale « paleoaerie Time. My day job has kept me extraordinarily busy and away from paleoaerie for a while, thus the lack of new posts here recently, so I thought now would be a good time to discuss temporal issues. Fortunately, things have calmed down a bit and I can get back to working on evolving the website. Speaking of which, it is time I got started. Time is a subject about which much has been written, especially about our perceptions of time. One of the difficulties some people have with evolution is they don’t see how small changes in a population could lead to the diversity of life we see. Unfortunately, they do not see how their personal experience misleads them. So how does one get people to comprehend the incomprehensibly vast time frames we are talking about? This is the standard geologic time scale used by professionals the world over, put out by the Geological Society of America. The idea of condensing all of time into a calendar can be re-envisioned as a clock.
Alpine Analytics | Deep Time: The Story of Mother Earth Copyright and Intent: ©2013 Root Routledge — all posters and images: permission granted to download, copy, print and freely distribute; not for sale or resale. My point is to share this work widely at no cost (other than your printing cost), to help everyone interested better understand our Mother Earth and how our climate system evolved and operates — and to motivate interest for active citizen engagement with climate policy to save our precious Blue Marble planet from its current business-as-usual (BAU) path to certain climate catastrophe. Printing Service: You can download jpg's and have them printed at your favorite locally-owned printing service. For your convenience, I've set up all jpg poster files with our local printer Basin Printing in Durango, Colorado. They can print all the sizes and ship them anywhere in the world. See the file list, pricing and contact information at the bottom of this page. Let's save our future.
6C: Pollen and Paleoclimate Lab Part C: Pollen and Paleoclimate Lab This lab activity was adapted from: Windows to the Universe (more info) and NSTA Climate Change Symposium, March 2011. Forest and shallow pond in Washington state. In this activity, you will take on the role of a paleobotanist, a scientist that studies ancient pollen from plants. First, some basic information about pollen cores: All flowering plants produce pollen grains with distinctive shapes. By examining the pattern of plant changes over time, scientists can: determine how long it took for plant species to migrate into or out of an area due to climate change; predict the speed in which plant communities might change in response to human-induced climate change; and predict which plants will be most likely to thrive if the climate warms or cools again. The Paleoclimate of Battle Ground Lake, Southern Puget Trough, Washington State Map showing location of research site. Many layers of sediments have been identified by paleoclimatologists. Pollen grains.
BBC Earth - Supercontinents join nearly all the Earth's dry land /utah/includes/education/curriculum-day5.php Day 5: The Extinction of the Dinosaurs Map of Continents Through Time Time in History: 66 million years ago (Cretaceous-Paleogene Border) Environment Parameters & Graphs of Carbon & Oxygen Question of the Day: Would is be possible to create a real Jurassic Park and bring dinosaurs back to life with stored samples of DNA? Key Concepts 66 million years ago a mass extinction called the Cretaceous–Paleogene (K-Pg) extinction event killed all the non-avian and most of the avian dinosaurs on the planet. Dispatch It’s nearly dinnertime, and the runners and their support crew are nowhere to be found. Photos of the Day Coming Soon! Character of the Day: Chicxulub Asteroid While we have been focusing on animals as our featured character for each day of the expedition, we could not help but chose the Chicxulub asteroid for the day 5 character, as it is credited with causing the extinction of the non-avian dinosaurs. Youth Ambassador Activity
Earth System learning progression Earth System learning progression View Original Image at Full Size Figure 3. Example of a possible learning progression for Earth system concepts. Image 185946 is a 382 by 674 pixel PNG Uploaded: May31 18 Last Modified: 2018-06-05 11:53:17Permanent URL: The file is referred to in 1 pageGrand Challenge 2 ProvenanceLynn Fichter and others 2010 ReuseThis item is offered under a Creative Commons Attribution-NonCommercial-ShareAlike license You may reuse this item for non-commercial purposes as long as you provide attribution and offer any derivative works under a similar license. Accessibility | About this Site | Printer Friendly | Report a Problem/Feedback
Earth Timeline: A Guide to Earth's Geological History and Events [Infographic] - Earth How Earth’s Timeline and History 4,567,000,000 years ago, Earth was covered in molten lava. Earth was completely unrecognizable. In its earliest stage of formation, it was uninhabitable as it clumped from a cloud of dust. Since about 1,000,000,000 years ago, Earth had its first signs of life. Next, an oxygenated atmosphere paved the way for more complex life forms to exist. Finally, 10,000,000 years ago was the age of mammals. In this Earth timeline, we lay out all the pieces on the floor. The Sculpting of Earth (4.6 – 4.0 billion years ago ) The Big Bang created all matter in the universe. In this early stage of Earth’s creation, the heaviest material like iron sank to the core. In the late Hadean Eon, the Earth was still in its late heavy bombardment stage. One of the most important events for Earth was the formation of our moon. Earth Cooling and Primitive Life (4.0 – 2.5 billion years ago ) The collision of the moon into Earth significantly impacted climate, oceans and life on Earth.
Plate tectonics - Development of tectonic theory | Britannica Precursors The outlines of the continents flanking the Atlantic Ocean are so similar that their correspondence was apparent as soon as accurate maps became available. The earliest references to this similarity were made in 1596 by Flemish cartographer Abraham Ortelius and later in 1620 by the English philosopher Francis Bacon, in his book Novum Organum, and by French naturalist Georges-Louis Leclerc, count de Buffon, a century later. Toward the end of the 18th century, Alexander von Humboldt, a German naturalist, suggested that the lands bordering the Atlantic Ocean had once been joined. In 1858 French geographer Antonio Snider-Pellegrini proposed that identical fossil plants in North American and European coal deposits could be explained if the two continents had formerly been connected. In 1908 American geologist Frank B. Alfred Wegener and the concept of continental drift Isostasy Driving forces