Posted on May 26, 2023 (Updated on July 9, 2025)
The Role of Assumptions in Isotopic Radiometric Dating: An Earth Science Perspective
Geology & LandformRadiometric dating is a powerful tool used by scientists to determine the age of rocks and other geological materials. It is based on the decay of radioactive isotopes, which allows scientists to calculate the amount of time that has elapsed since the material was formed. However, radiometric dating relies heavily on a number of assumptions,
Posted on May 26, 2023 (Updated on July 9, 2025)
Uncovering the Secrets of Mud Crack Formation: A Stratigraphic Perspective
Geology & LandformIntroduction Mud cracks are a common feature in sedimentary rocks formed by the desiccation or drying of mud. These cracks can provide valuable information about the depositional environment and the history of the sediment. In this article we will explore the formation of mud cracks from a stratigraphic perspective. Formation of mud cracks Mud cracks
Posted on May 25, 2023 (Updated on July 10, 2025)
Exploring Facies and Petrography: A Guide to Processes and Depositional Environments
Geology & LandformIntroduction Facies and petrography are two important concepts in earth science that are often studied together. Facies refers to the physical characteristics of a rock, such as its grain size, texture, color, and mineral composition. Petrography is the study of the composition and structure of rocks and can be used to interpret the depositional environment
Posted on May 25, 2023 (Updated on July 9, 2025)
Exploring the Expansion of Earth’s Atmosphere in the Face of Gravity
Geology & LandformWhat is gravity and how does it affect the atmosphere? Gravity is a force of attraction between two objects that is proportional to the mass of each object. It is the force that holds the Earth and all of its components, including the atmosphere, in place. The atmosphere is made up of a number of
Posted on October 3, 2022 (Updated on July 9, 2025)
Why continents do not subduct
Geology & LandformAsked by: Veronica Mitchell But here’s the hitch: the reason these fragments smash into the continent instead of sinking into the mantle is that they are too light and thick to subduct. The buoyant crust gets stuck and chokes the subduction zone. Somehow, though, these geologic conveyer belts eventually resume their descent. Do continents ever
Posted on September 27, 2022 (Updated on July 9, 2025)
What are the key elements defining the separation between Jurassic and Cretaceous?
Geology & LandformAsked by: Ruth Hamkens No great extinction or burst of diversity separated the Cretaceous from the Jurassic Period that had preceded it. If there are no strong elements, some key feature are: flower plants. diatoms in the oceans. What is the difference between Jurassic and Cretaceous? The Jurassic period, from about 200 million to 145