WorldCat Identities

Cook, Timothy D. 1960-

Works: 15 works in 18 publications in 3 languages and 295 library holdings
Genres: Case studies 
Roles: Author
Publication Timeline
Most widely held works by Timothy D Cook
Facies description and interpretation of the upper Lower Hickory Sandstone, Riley Formation, Central Texas by Timothy D Cook( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

Present models suggest that fluvial and marine depositional patterns were distinct from modern patterns prior to the appearance of land plants. Although these models are likely correct, problems exist when one attempts to distinguish between fluvial and shallow marine deposits in pre-Silurian strata, making it difficult to accurately determine depositional patterns. The lack of land plants and scarcity of body and trace fossils, especially in Precambrian and early Cambrian strata, make identification difficult. Based on core data and limited outcrops, the Lower Hickory Sandstone, a late Cambrian sandstone, has been interpreted to progress from fluvial to shallow marine. These data have allowed the development of an overall depositional model, but minimal detail of facies changes is available. Based on the limited data, both deltaic and estuarine models have been suggested for the Lower Hickory. Mining of the Lower Hickory for frac sand has created highwalls in the CarmeuseNA Mine, which provides an opportunity to study facies changes at this site. The CarmeuseNA Mine, located in McCulloch County, Texas, has exposed the formation along ~500 m long and 20 m-high faces, respectively. Because of limited exposure, only the south and west walls, as well as part of the east wall, could be examined. Digital photographs of the faces were mosaiced using standard photogrammetrical practices to produce visual representation of the highwalls. Bedding geometry was then mapped on the digital images to facilitate a detailed interpretation of the depositional process. Core and well data were used to map Hickory thickness to produce an isopach map. Four primary facies were observed in the quarry, dominated by small-scale and large-scale cross-bedding. Paleocurrents are generally unidirectional to the southsoutheast indicating a braided fluvial origin, but rarely opposing directions are seen. Bioturbation is rare low in the section, but increases upwards. Together with the rare herringbone cross-bedding, clay drapes, and bioturbation, a tidal influence is strongly suggested. The model suggested is a braided stream setting influenced and reworked by tides. A braided-delta fed by braided streams guided by a ridge and swale-dominated setting, which served as the sediment supply for the delta, is proposed
Apple in China by Mary B Teagarden( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Audience Level
Audience Level
  Kids General Special  
Audience level: 0.33 (from 0.01 for Apple in C ... to 0.88 for Ku ke:ping ...)

Alternative Names
Cook, Tim 1960-

Cook, Timothy Donald 1960-

Tim Cook

tim cook american business executive

Tim Cook amerikai üzletember

Tim Cook CEO van Apple

Tim Cook directeur général d'Apple

Tim Cook dirigente d'azienda statunitense

Tim Cook empresario estadounidese

Tim Cook executivo de negócios americano

Tim Cook US-amerikanischer Manager

Tim Cook usona negoca ekzekutivo, la CEO de Apple Inc

Tim Kuk

Timothy D. Cook

Τιμ Κουκ Αμερικανός στέλεχος επιχειρήσεων

Тим Кук генеральный директор Apple

Тім Кук

Цім Кук

Թիմ Քուկ

טים קוק

טים קוק איש עסקים אמריקאי

تيم كوك

تیم کووک

تیم کوک مدیر عامل‌ شرکت اپل

تیم کوک هنرمند آمریکایی

टिम कुक

টিম কুক CEO of Apple Inc.

ਟਿਮ ਕੁਕ

டிம் குக்

టిమ్ కుక్

ಟಿಮ್ ಕುಕ್

ทิม คุก


팀 쿡



提姆·庫克 美國商業經理

提姆庫克 美國商業經理


蒂姆·库克 美国商业经理

English (11)

Chinese (6)

Thai (1)