Demir Altıner

E-mail

demir@metu.edu.tr

Department

Department of Geological Engineering

ORCID

0000-0002-9437-7102

Scopus Author ID

6603671681

Web of Science Researcher ID

ABA-3163-2020

New foraminifera from the Changhsingian (Upper Permian) of the Taurides (southern Turkey) with remarks on their evolutionary origins Altıner, Demir; Payne, Jonathan L.; Lehrmann, Daniel J.; Atasoy, Serdar Görkem; Altıner, Sevinç (2025-03-03) Several new foraminiferal taxa are described from the Changhsingian carbonates of southern Turkey, and their evolutionary relationships are discussed within the middle to late Permian time frame. Comprising Retroseptellina...
Significance of the Paleocene olistostrome–turbidite belt (Abant Formation) along the Intra-Pontide Suture, northern Turkey Okay, Aral; Altıner, Demir; Özcan, Ercan; Hakyemez, Aynur (2024-09-02) A belt of Paleocene turbidites with olistostromes, the Abant Formation, crops out for 350 km along the Intra-Pontide Suture in northern Turkey. The suture constitutes the contact between two major Pontide tectonic units, t...
Toridler’in (Güney Türkiye) Çangsingiyen’inden (Üst Permiyen) Yeni Tür Glomomidiellopsis? okayi ve Diğer Yeni Foraminiferler: Evrimsel Kökenleri ve Paleobiyocoğrafik Dağılımları Altıner, Demir; Payne, Jonathan; Lehrmann, Daniel; Atasoy, Serdar Görkem; Altıner, Sevinç (2024-06-10) Güney Türkiye’nin Çangsingiyen karbonatlarından, yeni tür Glomomidiellopsis? okayi’yi de içeren, çok sayıda yeni foraminifer tanımlanmakta ve Orta-Geç Permiyen zaman dilimi içinde evrimsel kökenleri ve paleobiyocoğrafik da...
Foraminiferal Responses to Sea Level Changes Across the Mid-Carboniferous Boundary in Central Taurides (Turkey) Özdemir, Ayşe; Altıner, Demir; Altıner, Sevinç (2024-01-01) The response of benthic foraminiferal assemblages to relative sea-level changes during the mid-Carboniferous succession of the Yarıcak Formation in the Central Taurides is assessed with respect to sedimentary cyclicity and...
On the nature of the Cimmerian Continent Şengör, Ali Mehmet Celal; Altıner, Demir; Zabcı, Cengiz; Sunal, Gürsel; Lom, Nalan; Aylan, Eşref; Öner, Tayfun (2023-12-01) The Cimmerian Continent is the narrow continental strip that rifted from the northeastern Gondwana-Land margin mostly during the Permian between the present-day Balkan regions and Indonesia and collided with the Laurasian ...
Late Cretaceous arc magmatism in the Western Pontides (Turkey) - temporal and chemical changes Sağlam, Ezgi; Duzman, Turgut; Ay, Cemre; Okay, Aral; Topuz, Gültekin; Sunal, Gürsel; Özcan, Ercan; Altıner, Demir; Hakyemez, Aynur; Wang, Jia-Min; Kylander-Clark, Andrew R. C. (2023-06-01) During the Late Cretaceous, a magmatic arc extended from the Lesser Caucasus through the northern margin of the Pontides into Srednogorie, Timok, Banat, and Apuseni (ABTS) in the Balkans for a distance of 2700 km. We studi...
Prolonged and gradual recovery of metazoan-algal reefs following the end-Permian mass extinction Kelley, Brian M.; Yu, Meiyi; Lehrmann, Daniel J.; Altıner, Demir; Payne, Jonathan L. (2023-01-01) The tempo of biotic recovery following extinction reflects the time scales of evolutionary processes and the long-term consequences of degraded ecosystems, but recovery patterns are poorly resolved. In this study, we inves...
Calibrating the Late Jurassic–Early Cretaceous shallow and deep marine bioevents by quantitative biostratigraphy: A synthesis from the Pontides Carbonate Platform (Turkey) Atasoy, Serdar Görkem; Altıner, Demir; Altıner, Sevinç (2022-08-01) © 2022 Elsevier B.V.The Late Jurassic–Early Cretaceous is an interval of unstandardized stages and includes the only Mesozoic system boundary without a Global Boundary Stratotype Section and Point – the Jurassic/Cretaceous...
Mezozoyik'te Standardize Edilmemiş Son Sistem Sınırı Olarak Kalan Jura – Kretase Geçişi Boyunca Sığ ve Derin Denizel Biyo-olaylarının Sayısal Biyostratigrafik Yöntemler İle Kalibrasyonu: Pontid Karbonat Platformundan Bir Sentez Atasoy, Serdar Görkem; Altıner, Demir; Altıner, Sevinç (2022-05-09) Geç Jura-Erken Kretase aralığı standardize edilmemiş birçok katı kapsamakta olup, Mezozoyik'te GSSP ile tanımlanmamış tek sistem sınırı olan Jura/Kretase (J/K) sınırını içermektedir. Tetis kuşağındaki derin denizel devamlı...
Duration and Intensity of End-Permian Marine Anoxia Pimentel-Galvan, Michael; Lau, Kimberly V.; Maher, Katharine; Mukerji, Tapan; Lehrmann, Daniel J.; Altıner, Demir; Payne, Jonathan L. (2022-01-01) Ocean anoxia was an important kill mechanism in the end-Permian mass extinction and uranium isotope data are among the most powerful tools for quantifying the global extent and duration of ocean deoxygenation due to the de...

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