GEO GIRL Courses

Biomineralization - Fe Hydroxide, Magnetite, Mn Oxides, Clays, Amorphous Silica

Explore microorganism-induced mineral formation, including iron hydroxides, magnetite, manganese oxides, clays, and amorphous silica. Learn about their formation processes, environments, and significance in geomicrobiology.

• YouTube
• 27 minutes
• On-Demand
• Free Video

Igneous Rock Textures and Classification Based on Grain Size and Shape - Igneous Petrology

Explore igneous rock textures, their formation, and classification based on grain size and shape. Learn about crystallization processes, nucleation, and growth rates in this comprehensive guide to igneous petrology.

• YouTube
• 23 minutes
• On-Demand
• Free Video

Igneous Rock Classification and How to Use the QAPF Diagram - Igneous Petrology

Comprehensive introduction to igneous rock classification, covering grain size, silica content, and the QAPF diagram. Learn to identify and categorize igneous rocks using key features and standardized schemes.

• YouTube
• 25 minutes
• On-Demand
• Free Video

Optical Mineralogy - Optical Indicatrix, Uniaxial vs Biaxial, Interference Figures - GEO GIRL

Explore optical indicatrix, uniaxial vs biaxial minerals, and interference figures. Learn to identify minerals using optical properties and petrographic microscope techniques.

• YouTube
• 31 minutes
• On-Demand
• Free Video

Prokaryote vs. Eukaryote Cell Walls, Cell Surface Layers, and Biosorption - Geobiology

Explore cell walls and biosorption in prokaryotes and eukaryotes. Learn about bacterial excretions, archaeal adaptations, and how organisms interact with their environment through passive and active processes.

• YouTube
• 26 minutes
• On-Demand
• Free Video

Mineral Polymorphism and PT Diagrams - Mineralogy

Explore mineral polymorphism, its types, and common examples. Learn about pressure-temperature diagrams and the stability fields of various mineral polymorphs in this comprehensive mineralogy lesson.

• YouTube
• 23 minutes
• On-Demand
• Free Video

Optical Mineralogy Part 1 - Plane and Cross Polarized Light, Birefringence, Pleochroism

Comprehensive introduction to optical mineralogy, covering light behavior in minerals, refractive index, polarized light, birefringence, interference colors, extinction, and pleochroism. Includes practical mineral identification techniques.

• YouTube
• 28 minutes
• On-Demand
• Free Video

Symmetry Operations, Types of Twinning, and Miller Indices of Crystal Planes - Mineralogy

Explore symmetry operations, twinning types, and Miller indices in mineralogy. Learn about crystal structures, cleavage planes, and their significance in X-ray diffraction and optical mineralogy.

• YouTube
• 33 minutes
• On-Demand
• Free Video

Foraminifera - Invertebrate Paleontology

Explore foraminifera's role in paleoclimate reconstruction, their classification, ecology, anatomy, and evolution. Learn about planktonic and benthic types, wall structures, and the significance of fusulinids as index fossils.

• YouTube
• 33 minutes
• On-Demand
• Free Video

The Anthropocene Epoch - GEO GIRL

Explores the Anthropocene epoch, detailing climate change impacts on ecosystems, oceans, and human life. Discusses greenhouse gases, migration, water scarcity, and positive feedback loops, concluding with actionable steps for mitigation.

• YouTube
• 24 minutes
• On-Demand
• Free Video

Pleistocene and Holocene Epochs - GEO GIRL

Explore major events of the Pleistocene and Holocene epochs, including glacial cycles, climate shifts, megafauna extinctions, and human evolution. Understand the impact of these changes on Earth's history and current climate.

• YouTube
• 34 minutes
• On-Demand
• Free Video

Echinoderms - Invertebrate Paleontology - Crinoids, Starfish, Sand Dollars, & More

Comprehensive exploration of echinoderms: diversity, anatomy, evolution, and classification. Focuses on crinoids and echinoids, their morphology, ecology, and evolutionary history. Includes identification practice and comparisons to vertebrates.

• YouTube
• 28 minutes
• On-Demand
• Free Video

Crystal Structure, Coordination Number & Polyhedra, Pauling's Rules, Bonding- Mineralogy

Explore crystal structures, coordination numbers, Pauling's rules, and bonding types in minerals. Learn about atomic arrangements, polyhedra, and ionic substitution in this comprehensive mineralogy overview.

• YouTube
• 30 minutes
• On-Demand
• Free Video

Arthropoda - Trilobites- Invertebrate Paleontology

Comprehensive exploration of trilobite morphology, classification, and evolution. Covers 12 orders, key features, and ecological significance of these ancient marine arthropods from the Paleozoic Era.

• YouTube
• 28 minutes
• On-Demand
• Free Video

Early Paleozoic Oxygen History - Evidence and Reasons for Paleozoic Oxygen Fluctuations

Explore Paleozoic oxygen fluctuations, their evidence, and impacts on biodiversity. Learn about the Devonian oxidation event, land plant evolution's role, and how changing oxygen levels shaped Earth's history.

• YouTube
• 25 minutes
• On-Demand
• Free Video