A Color Guide to the Petrography of Carbonate Rocks: Grains, Textures, Porosity, Diagenesis (AAPG Memoir) (Aapg Memoir)

This volume expands and improves the AAPG 1978 classic, A Color Illustrated Guide to Carbonate Rock Constituents, Textures, Cements, and Porosities (AAPG Memoir 27). Carbonate petrography can be quite complicated. Changing assemblages of organisms through time, coupled with the randomness of thin-section cuts through complex shell forms, add to the difficulty of identifying skeletal grains. Furthermore, because many primary carbonate grains are composed of unstable minerals (especially aragonite and high-Mg calcite), diagenetic alteration commonly is quite extensive in carbonate rocks. The variability of inorganic and biogenic carbonate mineralogy through time, however, complicates prediction of patterns of diagenetic alteration. This book is designed to help deal with such challenges. It includes a wide variety of examples of commonly encountered skeletal and nonskeletal grains, cements, fabrics, and porosity types. It includes extensive new tables of age distributions, mineralogy, morphologic characteristics, environmental implications and keys to grain identification. It also encompasses a number of noncarbonate grains, that occur as accessory minerals in carbonate rocks or that may provide important biostratigraphic or paleoenvironmental information in carbonate strata. With this guide, students and other workers with little formal petrographic training should be able to examine thin sections or acetate peels under the microscope and interpret the main rock constituents and their depositional and diagenetic history. 01.pdf......Page 1 M77ch01.pdf......Page 12 M77ch02.pdf......Page 44 M77ch03.pdf......Page 62 M77ch04.pdf......Page 86 M77ch05.pdf......Page 94 M77ch06.pdf......Page 112 M77ch07.pdf......Page 134 M77ch08.pdf......Page 152 M77ch09.pdf......Page 164 M77ch10.pdf......Page 188 M77ch11.pdf......Page 204 M77ch12.pdf......Page 218 M77ch13.pdf......Page 226 M77ch14.pdf......Page 238 M77ch15.pdf......Page 256 M77ch16.pdf......Page 264 M77ch17.pdf......Page 270 M77ch18.pdf......Page 276 M77ch19.pdf......Page 284 M77ch20.pdf......Page 294 M77ch21.pdf......Page 304 M77ch22.pdf......Page 314 M77ch23.pdf......Page 324 M77ch24.pdf......Page 342 M77ch25.pdf......Page 362 M77ch26.pdf......Page 382 M77ch27.pdf......Page 404 M77ch28.pdf......Page 418 M77ch29.pdf......Page 428 M77ch30.pdf......Page 440 03.pdf......Page 460