Claim Missing Document
Check
Articles

Found 2 Documents
Search

KARAKTERISTIK DAN GENESA PENGAYAAN UNSUR-UNSUR TANAH JARANG PADA BATUBARA LAPANGAN BATUBARA MUARA TIGA BESAR UTARA, TANJUNG ENIM, CEKUNGAN SUMATERA SELATAN Anggara, Ferian; Cikasimi, Mutiara; Rahmat, Basuki; Wibisono, Sigit Arso; Susilawati, Rita
Buletin Sumber Daya Geologi Vol. 14 No. 3 (2019): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1655.644 KB) | DOI: 10.47599/bsdg.v14i3.288

Abstract

Batubara telah menjadi salah satu sumber alternatif unsur-unsur tanah jarang (UTJ) seiring dengan meningkatnya permintaan terhadap kebutuhan unsur-unsur tersebut. Kondisi geologis spesifik menyebabkan pengayaan konsentrasi UTJ pada batubara. Keterdapatan lapisan tipis material vulkanik (tonstein) pada Lapangan Batubara Muara Tiga Besar Utara, Formasi Muara Enim, Cekungan Sumatera Selatan menjadi salah satu indikasi terdapatnya pengayaan UTJ. Penelitian dilakukan menggunakan metode petrografi sayatan poles, analisis-analisis X-Ray Diffraction (XRD), proksimat, dan geokimia; Inductively Coupled Plasma-Mass/Atomic Emission Spectroscopy (ICP-MS/AES). Analisis geokimia menunjukkan pola distribusi UTJ didominasi oleh tipe UTJ Berat (Heavy Rare Earth Elements, HREE). Plot diagram nilai Coutl dan REOash menunjukkan prospek pengayaan UTJ termasuk ke dalam daerah prospek. Pola distribusi UTJ dan anomali redox sensitive dan redox non-sensitive menunjukkan tipe genetik pengayaan UTJ adalah tufaan. Pengayaan UTJ terjadi oleh proses pencucian alkaline tonstein yang terendapkan pada fase penggambutan dalam pembentukan batubara.
The Influence of Work-Life Balance, Workload, and Work Stress on Turnover Intention of Generation Z Employees PT. Ruifeng Hande Indonesia Susilawati, Rita; Indriani, Indriani; Hardjowikarto, Dharliana Ayu; Sunimah, Sunimah
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 8 No 1 (2025): Sharia Economics
Publisher : Sharia Economics Department Universitas KH. Abdul Chalim, Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v8i3.7083

Abstract

The purpose of this study is to examine how work-life balance, workload, and job stress affect turnover intention among Generation Z employees at PT Ruifeng Hande Indonesia. Generation Z is known to have high expectations of work-life balance, but is also more vulnerable to work stress and pressure, which can increase their intention to change jobs. The research method used is quantitative with a multiple linear regression approach. The results showed that work stress has a significant effect on turnover intention, while work-life balance and workload do not have a significant effect. This finding indicates that job stress is the main factor that drives Generation Z to leave the company, while work-life balance and workload may be influenced by other factors such as job satisfaction or compensation. The results of this study have an important impact on company management in designing policies that can improve employee welfare and reduce turnover. One way to do this is by creating a more flexible work environment and managing workload more effectively.