Results 51 to 60 of about 2,839,750 (318)
A machine learning lithologic identification method combined with vertical reservoir information
地质科技通报, 2023 Compared with coring data, well logging data contain much lithologic information with the advantages of strong continuity and low cost. The machine learning method is applied to explore the correlation between the log curves and the lithology of the ...
Chi Zhang +4 more
doaj +1 more source
Stratigraphy of Tithonian (Ohauan-Puaroan ) marine beds near Port Waikato, New Zealand, and a redescription of Belemnopsis aucklandica (Hochstetter). [PDF]
, 2001 Some 1500 m of marine Ohauan and Puaroan strata in the Port Waikato region of New Zealand are restudied in an attempt to resolve lithostratigraphic and biostratigraphic anomalies in published works.
Challinor, A.B.
core +2 more sources
Archaeology in Oceania, EarlyView.ABSTRACT Shell middens in Gippsland along the eastern half of Victoria's coastline have usually been characterised as small, short‐duration camp sites with relatively low shell densities and low taxonomic diversity. Here we present new excavation results from a dense, high‐diversity site at Red Bluff near the eastern end of GunaiKurnai Country, a ...
Patrick Faulkner +17 more
wiley +1 more source
Energies, 2023 Lithology identification is the basis for sweet spot evaluation, prediction, and precise exploratory deployment and has important guiding significance for areas with low exploration degrees.
Zhaojing Song +5 more
doaj +1 more source
A multiple profile approach to the palynological reconstruction of Norse landscapes in Greenland's Eastern Settlement [PDF]
, 2014 Acknowledgments The Leverhulme Trust is thanked for financial support. Gordon Cook provided radiocarbon dates. Thanks are also due to Andy McMullen for botanical identifications and assistance in the field, and to Sikuu Motzfeld for hospitality during ...
Edwards, Kevin J +2 more
core +1 more source
The spread of non‐native species
Biological Reviews, EarlyView.ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock +16 more
wiley +1 more source
Towards Optimization of Boosting Models for Formation Lithology Identification
Mathematical Problems in Engineering, 2019 Lithology identification is an indispensable part in geological research and petroleum engineering study. In recent years, several mathematical approaches have been used to improve the accuracy of lithology classification. Based on our earlier work that assessed machine learning models on formation lithology classification, we optimize the boosting ...
Yunxin Xie +3 more
openaire +3 more sources
Optimal aquifers and reservoirs for CCS and EOR in the Kingdom of Saudi Arabia : An overview [PDF]
, 2016 Peer reviewedPublisher ...
Jaju, M. M. +3 more
core +5 more sources
Early evolutionary history of the seed
Biological Reviews, EarlyView.ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman +2 more
wiley +1 more source
Tahiti sea level : the last deglacial sea level rise in the South Pacific [PDF]
, 2005 Integrated Ocean Drilling Program (IODP) Expedition 310 to the reef terraces around Tahiti, French Polynesia, was the second expedition to utilize a mission-specific platform (MSP) and was conducted by the European Consortium for Ocean Research Drilling (
Camoin, Gilbert F. +2 more
core +1 more source