SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #14: Chert and Ironstone Reading assignment:

Slides:

Advertisements

Similar presentations

Dissolution and Precipitation

Advertisements

Evaporites: all deposits that are composed of minerals that originally precipitated from saline solutions concentrated by solar evaporation. Found in both.

Diagenesis of Siliciclastics

Chapter 7 Sedimentary Rocks

CHEMICAL SEDIMENTARY ROCKS Prepared by Dr. F. Clark Department of Earth and Atmospheric Sciences, University of Alberta August 06.

Earth Systems 3209 – Unit 3. The Rock Cycle  Why study sedimentary rocks? Economic use, fossils and earths history.  5% of Earths crust is sedimentary.

Sedimentary Rocks. What is a sedimentary rock? Sedimentary rocks are products of mechanical and chemical weathering They account for about 5 percent (by.

© 2011 Pearson Education, Inc. Earth: An Introduction to Physical Geology, 10e Tarbuck & Lutgens.

Sedimentary Rocks Section 3.3.

TOPIC- CLASSIFICATION OF SEDIMENTARY ROCKS

Introduction to Sedimentology and Stratigraphy

 A. Siliceous, dense, --qtz, chalcedony or opal B.

Sedimentology & Stratigraphy

Chemical & Organic Sedimentary Rocks (Names based primarily on composition) Basic Rock Name Limestone Dolostone Chert Rock Salt Rock Gypsum Peat or Coal.

Sedimentary Rocks Interpretations.

Sedimentologi Kamal Roslan Mohamed INTRODUCTION.

U Chemical sedimentary rocks v derived from material carried in solution to lakes/seas v evaporation and precipitation from solution to form “chemical.

STROMATOLITES. strōma, mattress, bed, stratum lithos, rock Means “ stony carpet ” Are considered as accretionary structure. Formed in shallow water by.

ESCI 101: Lecture Rocks February 16, 2007 Copy of this lecture will be found at: With Some Graphics from Press et al.,

LIMESTONES Calcite (calcium carbonate) dominates Fine-grained –Chalk (cliffs of Dover, England) Medium-grained –Oolitic limestones Coarse-grained –Coquina.

Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #5: Beds, Bedding and Bed Description Reading assignment:

Copyright © 2014 All rights reserved, Government of Newfoundland and Labrador Earth Systems 3209 Unit: 3 Earth’s Materials Reference: Chapters 2, 3, 6,

SACRAMENTO STATE Geology 103A Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #13: Lacustrine systems Reading assignments:

Chasing Precambrian Paleo-redox Yanan Shen Harvard University PHANEROZOIC NEOPROTEROZOIC MESOPROTEROZOIC PALEOPROTEROZOIC PROTEROZOIC ARCHEAN HADEAN.

Sedimentary Rocks.

© 2011 Pearson Education, Inc. Sedimentary Rocks Earth, 10e - Chapter 7.

Types of rocks.

Deep-Sea Biogenic Sediments. Calcareous Ooze Biogenic calcareous ooze composed of precipitated CaCO 3 (usually calcite, but occasionally aragonite) shells.

Chemical Sedimentary Rock

Rocks.  Rocks are any solid mass of mineral or mineral-like matter occurring naturally as part of our planet.

1 UIUC ATMOS 397G Biogeochemical Cycles and Global Change Lecture 3: Origin of Earth’s Atmosphere Don Wuebbles Department of Atmospheric Sciences University.

Taxonomic Key For the Forms of Quartz 1a) Mineral has six-side hexagonal crystals and visible crystal facets 1b) Mineral has no visible crystal facets.

Chapter 6 Section 3 Sedimentary Rock. Formation Sediment (small particles of sand, clay, or pebbles) get cemented together.

Sedimentary Rock Formation. Formation Pre-existing rocks must be broken down Sediments: bits & pieces of pre-existing rock 2 general ways for this to.

Sedimentary Rocks Earth, 9e - Chapter 7. What is a sedimentary rock? Sedimentary rocks - products of mechanical and chemical weathering Comprise about.

Lecture Outlines Physical Geology, 12/e

Geologic Time Physical Geology Chapter 8

Sedimentary Petrology GEO 333

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #17: Eolian deposition Reading assignments:

Section 3: Ocean-Floor Sediments

JEOLOJİ MÜHENDİSLİĞİ ANA BİLİM DALI

Sedimentary Rocks Detrital rocks Material is solid particles

G225 - Earth Materials Syllabus - Fall 2018 Lecture

Chapter 3 Rocks.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #10: Alluvial fans Reading assignment:

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #13: Alluvial fans Reading assignment:

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #1: - Weathering and Sedimentary Textures.

Section 3: Ocean-Floor Sediments

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #2: Siliciclastic rock identification.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #9: Turbidity flows, deep sea fan.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #11: Chert and Ironstone Reading assignment:

Unit 3 - Rock Types Sedimentary Rocks.

SACRAMENTO STATE Geology 103A Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #16: Stratigraphy Reading assignments:

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #1: - Weathering and Sedimentary Textures.

Ocean Sediments Chapter 23 Section 3.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #15: Coal and Carbonaceous rocks Reading.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #8: Mass movements, sediment gravity.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #6: Irregular stratification, secondary.

Deep-Sea Sediments.

SACRAMENTO STATE Geology 103A Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #20: Carbonate composition and stability.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #18: Beach and barrier island deposits.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #4: Flow regimes, beds and bedform.

SACRAMENTO STATE Geology 103A Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #11: Channel morphology, Braided.

Stratigraphy, Fossils and Geologic Time

SACRAMENTO STATE Geology 103A Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #10: Evaporite deposition, phosphatic.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #12: Coal and Carbonaceous rocks Reading.

SACRAMENTO STATE Geology 103A Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #19: Carbonate components and classification.

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #3: Fundamentals of fluid flow Reading.

SACRAMENTO STATE Geology 103A Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #7: Sandstone classification Reading.

Exam 3 Review Sedimentary Rocks: clastic rocks- shale, siltstone, sandstone (various types), conglomerate/breccia; biochemical-limestone; chemical- sulfates.

Presentation transcript:

SACRAMENTO STATE Geology 103 Sedimentology and Stratigraphy Tim Horner Geology Department, CSU Sacramento Lecture #14: Chert and Ironstone Reading assignment: Boggs, 5th ed., pp. 175-194

Microquartz, megaquartz, chalcedony- thin sections From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 207

Opal- amorphous, irridescent

Jasper, flint, porcelanite

Bedded chert, nodular chert

Diatoms in deep sea sediment From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 209

Nodular chert From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 210

Sources of silica in marine water From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 222

Pathways of silica transformation after deposition From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 214

Silica stability vs. pH and temp. From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 214

Principal iron-bearing minerals From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 219

Banded iron formation (BIF)

Geochemical stability of iron-rich minerals From Boggs, Principles of Sedimentology and Stratigraphy, 5th ed., p. 222