ПОЛОЖЕННЯ ГРАНИЦЬ ЯРУСІВ ПАЛЕОГЕНУ В ОСАДОВОМУ РОЗРІЗІ ПЛАТФОРМНОЇ УКРАЇНИ: СУЧАСНИЙ СТАН, КРИТЕРІЇ ВИЗНАЧЕННЯ
DOI:
https://doi.org/10.30836/igs.2522-9753.2021.228226Ключові слова:
МСШ, палеоген, ярус, границі, регіоярус, УкраїнаАнотація
Наведені відомості про точки глобальних стратотипів границь ярусів палеогену сучасної Міжнародної стратиграфічної шкали, а також критерії визначення границь ярусів палеогену в Північно-Західній Європі. Охарактеризовано положення границь ярусів палеогену в осадовому розрізі платформної України. В палеогеновому розрізі Південної України за глобальними корелятивними маркерами розпізнані нижні границі іпру та приабону. За сучасною Міжнародною стратиграфічною шкалою уточнено положення границь лютету/бартону і рюпелю/хату в осадовому розрізі Південної і Північної України в порівнянні з попередніми уявленнями. Для більшості ярусних границь більш точно визначено положення в біостратиграфічній (зональній) схемі палеогену України та запропоновані критерії розпізнавання в розрізі півдня і півночі України. З’ясовано, що більшість ярусних границь пов’язана зі стратиграфічними перервами в осадовому розрізі платформної України. Частина границь ярусів палеогену співпадає з границями регіональних стратиграфічних підрозділів Південної і Північної України: границя крейди/палеогену проходить по підошві білокам’янського і псьольського регіоярусів; границя палеоцену/еоцену суміщена з границею мерлинського/канівського регіоярусів; границя іпру/лютету – з границею канівського/бучацького регіоярусів; нижня границя приабону проведена по підошві альминського і обухівського регіоярусів; границя еоцену/олігоцену – по межі альминського/планорбелового і обухівського/межигірського регіоярусів; границя рюпелю/хату проходить по межі нижнього/верхнього регіопід’ярусів керлеутського регіоярусу і по межі зміївського/сиваського регіоярусів берецького регіоярусу; границя палеогену/неогену – по крівлі керлеутського і берецького регіоярусів. Неспівпадіння границь ярусів і регіоярусів: границя данію/зеландію проходить у верхній частині білокам’янського і псьольського регіоярусів; границя зеландію/танету проведена в нижній частині качинського і мерлинського регіоярусів; нижня границя іпрського ярусу проходить у верхах качинського регіоярусу; границя іпру/лютету – в середині сімферопольського регіоярусу; границя лютету/бартону – в низах кумського регіоярусу і в середині київського регіоярусу.
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